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Finding the Fourth Proportional to 112,543, 168,816.12 and 29,437

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Solution

The fourth proportional to 112,543, 168,816.12 and 29,437 is: 44,155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,543 : 168,816.12 = 29,437 : x
  2. Step 2: Convert to fraction form
    112,543/168,816.12 = 29,437/x
  3. Step 3: Cross multiply
    112,543x = 168,816.12 × 29,437
  4. Step 4: Simplify right side
    112,543x = 4,969,440,124.44
  5. Step 5: Solve for x
    x = 4,969,440,124.44/112,543
  6. Step 6: Final answer
    x = 44,155.92

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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.