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Finding the Fourth Proportional to 72,498.60, 108,966.60 and 62,875.80

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Solution

The fourth proportional to 72,498.60, 108,966.60 and 62,875.80 is: 94,503.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,498.60 : 108,966.60 = 62,875.80 : x
  2. Step 2: Convert to fraction form
    72,498.60/108,966.60 = 62,875.80/x
  3. Step 3: Cross multiply
    72,498.60x = 108,966.60 × 62,875.80
  4. Step 4: Simplify right side
    72,498.60x = 6,851,362,148.28
  5. Step 5: Solve for x
    x = 6,851,362,148.28/72,498.60
  6. Step 6: Final answer
    x = 94,503.37

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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.