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Finding the Fourth Proportional to 132,812.80, 199,277.52 and 70,468

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Solution

The fourth proportional to 132,812.80, 199,277.52 and 70,468 is: 105,732.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,812.80 : 199,277.52 = 70,468 : x
  2. Step 2: Convert to fraction form
    132,812.80/199,277.52 = 70,468/x
  3. Step 3: Cross multiply
    132,812.80x = 199,277.52 × 70,468
  4. Step 4: Simplify right side
    132,812.80x = 14,042,688,279.36
  5. Step 5: Solve for x
    x = 14,042,688,279.36/132,812.80
  6. Step 6: Final answer
    x = 105,732.94

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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.