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Finding the Fourth Proportional to 112,517.60, 168,776.40 and 29,411.60

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Solution

The fourth proportional to 112,517.60, 168,776.40 and 29,411.60 is: 44,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,517.60 : 168,776.40 = 29,411.60 : x
  2. Step 2: Convert to fraction form
    112,517.60/168,776.40 = 29,411.60/x
  3. Step 3: Cross multiply
    112,517.60x = 168,776.40 × 29,411.60
  4. Step 4: Simplify right side
    112,517.60x = 4,963,983,966.24
  5. Step 5: Solve for x
    x = 4,963,983,966.24/112,517.60
  6. Step 6: Final answer
    x = 44,117.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.