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Finding the Fourth Proportional to 88,459.76, 122,071.65 and 52,641.56

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Solution

The fourth proportional to 88,459.76, 122,071.65 and 52,641.56 is: 72,643.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,459.76 : 122,071.65 = 52,641.56 : x
  2. Step 2: Convert to fraction form
    88,459.76/122,071.65 = 52,641.56/x
  3. Step 3: Cross multiply
    88,459.76x = 122,071.65 × 52,641.56
  4. Step 4: Simplify right side
    88,459.76x = 6,426,042,087.77
  5. Step 5: Solve for x
    x = 6,426,042,087.77/88,459.76
  6. Step 6: Final answer
    x = 72,643.68

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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.