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Finding the Fourth Proportional to 122,569.79, 168,999.14 and 88,523.87

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Solution

The fourth proportional to 122,569.79, 168,999.14 and 88,523.87 is: 122,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,569.79 : 168,999.14 = 88,523.87 : x
  2. Step 2: Convert to fraction form
    122,569.79/168,999.14 = 88,523.87/x
  3. Step 3: Cross multiply
    122,569.79x = 168,999.14 × 88,523.87
  4. Step 4: Simplify right side
    122,569.79x = 14,960,457,275.79
  5. Step 5: Solve for x
    x = 14,960,457,275.79/122,569.79
  6. Step 6: Final answer
    x = 122,056.65

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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.