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Finding the Fourth Proportional to 118,599,524.80, 177,899,287.20 and 42,009,035.20

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Solution

The fourth proportional to 118,599,524.80, 177,899,287.20 and 42,009,035.20 is: 63,013,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,599,524.80 : 177,899,287.20 = 42,009,035.20 : x
  2. Step 2: Convert to fraction form
    118,599,524.80/177,899,287.20 = 42,009,035.20/x
  3. Step 3: Cross multiply
    118,599,524.80x = 177,899,287.20 × 42,009,035.20
  4. Step 4: Simplify right side
    118,599,524.80x = 7,473,377,418,039,709
  5. Step 5: Solve for x
    x = 7,473,377,418,039,709/118,599,524.80
  6. Step 6: Final answer
    x = 63,013,552.80

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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.