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Finding the Fourth Proportional to 119,963.16, 165,550.50 and 66,248.10

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Solution

The fourth proportional to 119,963.16, 165,550.50 and 66,248.10 is: 91,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,963.16 : 165,550.50 = 66,248.10 : x
  2. Step 2: Convert to fraction form
    119,963.16/165,550.50 = 66,248.10/x
  3. Step 3: Cross multiply
    119,963.16x = 165,550.50 × 66,248.10
  4. Step 4: Simplify right side
    119,963.16x = 10,967,406,079.05
  5. Step 5: Solve for x
    x = 10,967,406,079.05/119,963.16
  6. Step 6: Final answer
    x = 91,423.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.