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Finding the Fourth Proportional to 118,215.85, 177,487.80 and 73,929.10

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Solution

The fourth proportional to 118,215.85, 177,487.80 and 73,929.10 is: 110,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,215.85 : 177,487.80 = 73,929.10 : x
  2. Step 2: Convert to fraction form
    118,215.85/177,487.80 = 73,929.10/x
  3. Step 3: Cross multiply
    118,215.85x = 177,487.80 × 73,929.10
  4. Step 4: Simplify right side
    118,215.85x = 13,121,513,314.98
  5. Step 5: Solve for x
    x = 13,121,513,314.98/118,215.85
  6. Step 6: Final answer
    x = 110,996.23

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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.