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Finding the Fourth Proportional to 261,958.93, 392,347.60 and 183,423.76

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Solution

The fourth proportional to 261,958.93, 392,347.60 and 183,423.76 is: 274,721.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,958.93 : 392,347.60 = 183,423.76 : x
  2. Step 2: Convert to fraction form
    261,958.93/392,347.60 = 183,423.76/x
  3. Step 3: Cross multiply
    261,958.93x = 392,347.60 × 183,423.76
  4. Step 4: Simplify right side
    261,958.93x = 71,965,870,579.55
  5. Step 5: Solve for x
    x = 71,965,870,579.55/261,958.93
  6. Step 6: Final answer
    x = 274,721.96

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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.