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Finding the Fourth Proportional to 118,001.70, 177,002.55 and 54,821.70

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Solution

The fourth proportional to 118,001.70, 177,002.55 and 54,821.70 is: 82,232.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,001.70 : 177,002.55 = 54,821.70 : x
  2. Step 2: Convert to fraction form
    118,001.70/177,002.55 = 54,821.70/x
  3. Step 3: Cross multiply
    118,001.70x = 177,002.55 × 54,821.70
  4. Step 4: Simplify right side
    118,001.70x = 9,703,580,695.34
  5. Step 5: Solve for x
    x = 9,703,580,695.34/118,001.70
  6. Step 6: Final answer
    x = 82,232.55

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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.