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Finding the Fourth Proportional to 261,964.92, 392,356.59 and 183,429.75

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Solution

The fourth proportional to 261,964.92, 392,356.59 and 183,429.75 is: 274,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,964.92 : 392,356.59 = 183,429.75 : x
  2. Step 2: Convert to fraction form
    261,964.92/392,356.59 = 183,429.75/x
  3. Step 3: Cross multiply
    261,964.92x = 392,356.59 × 183,429.75
  4. Step 4: Simplify right side
    261,964.92x = 71,969,871,214.55
  5. Step 5: Solve for x
    x = 71,969,871,214.55/261,964.92
  6. Step 6: Final answer
    x = 274,730.95

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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.