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Finding the Fourth Proportional to 99,746.30, 149,728.80 and 62,348.60

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Solution

The fourth proportional to 99,746.30, 149,728.80 and 62,348.60 is: 93,591.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,746.30 : 149,728.80 = 62,348.60 : x
  2. Step 2: Convert to fraction form
    99,746.30/149,728.80 = 62,348.60/x
  3. Step 3: Cross multiply
    99,746.30x = 149,728.80 × 62,348.60
  4. Step 4: Simplify right side
    99,746.30x = 9,335,381,059.68
  5. Step 5: Solve for x
    x = 9,335,381,059.68/99,746.30
  6. Step 6: Final answer
    x = 93,591.25

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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.