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Finding the Fourth Proportional to 69,564.40, 104,200.80 and 62,177.20

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Solution

The fourth proportional to 69,564.40, 104,200.80 and 62,177.20 is: 93,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,564.40 : 104,200.80 = 62,177.20 : x
  2. Step 2: Convert to fraction form
    69,564.40/104,200.80 = 62,177.20/x
  3. Step 3: Cross multiply
    69,564.40x = 104,200.80 × 62,177.20
  4. Step 4: Simplify right side
    69,564.40x = 6,478,913,981.76
  5. Step 5: Solve for x
    x = 6,478,913,981.76/69,564.40
  6. Step 6: Final answer
    x = 93,135.48

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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.