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Finding the Fourth Proportional to 88,761.52, 122,491.12 and 48,475.60

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Solution

The fourth proportional to 88,761.52, 122,491.12 and 48,475.60 is: 66,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,761.52 : 122,491.12 = 48,475.60 : x
  2. Step 2: Convert to fraction form
    88,761.52/122,491.12 = 48,475.60/x
  3. Step 3: Cross multiply
    88,761.52x = 122,491.12 × 48,475.60
  4. Step 4: Simplify right side
    88,761.52x = 5,937,830,536.67
  5. Step 5: Solve for x
    x = 5,937,830,536.67/88,761.52
  6. Step 6: Final answer
    x = 66,896.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.