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Finding the Fourth Proportional to 118,666.60, 177,999.90 and 62,429.80

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Solution

The fourth proportional to 118,666.60, 177,999.90 and 62,429.80 is: 93,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,666.60 : 177,999.90 = 62,429.80 : x
  2. Step 2: Convert to fraction form
    118,666.60/177,999.90 = 62,429.80/x
  3. Step 3: Cross multiply
    118,666.60x = 177,999.90 × 62,429.80
  4. Step 4: Simplify right side
    118,666.60x = 11,112,498,157.02
  5. Step 5: Solve for x
    x = 11,112,498,157.02/118,666.60
  6. Step 6: Final answer
    x = 93,644.70

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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.