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Finding the Fourth Proportional to 160,494.77, 239,688.25 and 128,952.77

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Solution

The fourth proportional to 160,494.77, 239,688.25 and 128,952.77 is: 192,582.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,494.77 : 239,688.25 = 128,952.77 : x
  2. Step 2: Convert to fraction form
    160,494.77/239,688.25 = 128,952.77/x
  3. Step 3: Cross multiply
    160,494.77x = 239,688.25 × 128,952.77
  4. Step 4: Simplify right side
    160,494.77x = 30,908,462,253.13
  5. Step 5: Solve for x
    x = 30,908,462,253.13/160,494.77
  6. Step 6: Final answer
    x = 192,582.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.