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Finding the Fourth Proportional to 112,503.92, 155,258.52 and 62,204.72

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Solution

The fourth proportional to 112,503.92, 155,258.52 and 62,204.72 is: 85,844.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,503.92 : 155,258.52 = 62,204.72 : x
  2. Step 2: Convert to fraction form
    112,503.92/155,258.52 = 62,204.72/x
  3. Step 3: Cross multiply
    112,503.92x = 155,258.52 × 62,204.72
  4. Step 4: Simplify right side
    112,503.92x = 9,657,812,764.21
  5. Step 5: Solve for x
    x = 9,657,812,764.21/112,503.92
  6. Step 6: Final answer
    x = 85,844.23

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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.