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Finding the Fourth Proportional to 66,099.92, 99,062.32 and 48,487.28

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Solution

The fourth proportional to 66,099.92, 99,062.32 and 48,487.28 is: 72,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,099.92 : 99,062.32 = 48,487.28 : x
  2. Step 2: Convert to fraction form
    66,099.92/99,062.32 = 48,487.28/x
  3. Step 3: Cross multiply
    66,099.92x = 99,062.32 × 48,487.28
  4. Step 4: Simplify right side
    66,099.92x = 4,803,262,447.29
  5. Step 5: Solve for x
    x = 4,803,262,447.29/66,099.92
  6. Step 6: Final answer
    x = 72,666.69

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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.