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Finding the Fourth Proportional to 159,653,616.40, 239,480,424.60 and 125,216,239.60

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Solution

The fourth proportional to 159,653,616.40, 239,480,424.60 and 125,216,239.60 is: 187,824,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,653,616.40 : 239,480,424.60 = 125,216,239.60 : x
  2. Step 2: Convert to fraction form
    159,653,616.40/239,480,424.60 = 125,216,239.60/x
  3. Step 3: Cross multiply
    159,653,616.40x = 239,480,424.60 × 125,216,239.60
  4. Step 4: Simplify right side
    159,653,616.40x = 29,986,838,226,223,332
  5. Step 5: Solve for x
    x = 29,986,838,226,223,332/159,653,616.40
  6. Step 6: Final answer
    x = 187,824,359.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.