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Finding the Fourth Proportional to 261,752.66, 392,624.66 and 64,760.66

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Solution

The fourth proportional to 261,752.66, 392,624.66 and 64,760.66 is: 97,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,752.66 : 392,624.66 = 64,760.66 : x
  2. Step 2: Convert to fraction form
    261,752.66/392,624.66 = 64,760.66/x
  3. Step 3: Cross multiply
    261,752.66x = 392,624.66 × 64,760.66
  4. Step 4: Simplify right side
    261,752.66x = 25,426,632,113.88
  5. Step 5: Solve for x
    x = 25,426,632,113.88/261,752.66
  6. Step 6: Final answer
    x = 97,139.92

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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.