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Finding the Fourth Proportional to 67,929.36, 101,750.40 and 42,956.52

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Solution

The fourth proportional to 67,929.36, 101,750.40 and 42,956.52 is: 64,343.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,929.36 : 101,750.40 = 42,956.52 : x
  2. Step 2: Convert to fraction form
    67,929.36/101,750.40 = 42,956.52/x
  3. Step 3: Cross multiply
    67,929.36x = 101,750.40 × 42,956.52
  4. Step 4: Simplify right side
    67,929.36x = 4,370,843,092.61
  5. Step 5: Solve for x
    x = 4,370,843,092.61/67,929.36
  6. Step 6: Final answer
    x = 64,343.95

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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.