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Finding the Fourth Proportional to 165,637.80, 248,456.70 and 152,807.40

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Solution

The fourth proportional to 165,637.80, 248,456.70 and 152,807.40 is: 229,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,637.80 : 248,456.70 = 152,807.40 : x
  2. Step 2: Convert to fraction form
    165,637.80/248,456.70 = 152,807.40/x
  3. Step 3: Cross multiply
    165,637.80x = 248,456.70 × 152,807.40
  4. Step 4: Simplify right side
    165,637.80x = 37,966,022,339.58
  5. Step 5: Solve for x
    x = 37,966,022,339.58/165,637.80
  6. Step 6: Final answer
    x = 229,211.10

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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.