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Finding the Fourth Proportional to 118,609.90, 177,935.91 and 39,732.10

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Solution

The fourth proportional to 118,609.90, 177,935.91 and 39,732.10 is: 59,605.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,609.90 : 177,935.91 = 39,732.10 : x
  2. Step 2: Convert to fraction form
    118,609.90/177,935.91 = 39,732.10/x
  3. Step 3: Cross multiply
    118,609.90x = 177,935.91 × 39,732.10
  4. Step 4: Simplify right side
    118,609.90x = 7,069,767,369.71
  5. Step 5: Solve for x
    x = 7,069,767,369.71/118,609.90
  6. Step 6: Final answer
    x = 59,605.20

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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.