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Finding the Fourth Proportional to 143,751.52, 215,340.54 and 67,746.16

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Solution

The fourth proportional to 143,751.52, 215,340.54 and 67,746.16 is: 101,484.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,751.52 : 215,340.54 = 67,746.16 : x
  2. Step 2: Convert to fraction form
    143,751.52/215,340.54 = 67,746.16/x
  3. Step 3: Cross multiply
    143,751.52x = 215,340.54 × 67,746.16
  4. Step 4: Simplify right side
    143,751.52x = 14,588,494,677.33
  5. Step 5: Solve for x
    x = 14,588,494,677.33/143,751.52
  6. Step 6: Final answer
    x = 101,484.11

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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.