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Finding the Fourth Proportional to 118,501.70, 177,752.55 and 74,264.90

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Solution

The fourth proportional to 118,501.70, 177,752.55 and 74,264.90 is: 111,397.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,501.70 : 177,752.55 = 74,264.90 : x
  2. Step 2: Convert to fraction form
    118,501.70/177,752.55 = 74,264.90/x
  3. Step 3: Cross multiply
    118,501.70x = 177,752.55 × 74,264.90
  4. Step 4: Simplify right side
    118,501.70x = 13,200,775,350.50
  5. Step 5: Solve for x
    x = 13,200,775,350.50/118,501.70
  6. Step 6: Final answer
    x = 111,397.35

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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.