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Finding the Fourth Proportional to 88,473, 122,092.74 and 48,729

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Solution

The fourth proportional to 88,473, 122,092.74 and 48,729 is: 67,246.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,473 : 122,092.74 = 48,729 : x
  2. Step 2: Convert to fraction form
    88,473/122,092.74 = 48,729/x
  3. Step 3: Cross multiply
    88,473x = 122,092.74 × 48,729
  4. Step 4: Simplify right side
    88,473x = 5,949,457,127.46
  5. Step 5: Solve for x
    x = 5,949,457,127.46/88,473
  6. Step 6: Final answer
    x = 67,246.02

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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.