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Finding the Fourth Proportional to 261,750.66, 392,621.67 and 64,758.66

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Solution

The fourth proportional to 261,750.66, 392,621.67 and 64,758.66 is: 97,136.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,750.66 : 392,621.67 = 64,758.66 : x
  2. Step 2: Convert to fraction form
    261,750.66/392,621.67 = 64,758.66/x
  3. Step 3: Cross multiply
    261,750.66x = 392,621.67 × 64,758.66
  4. Step 4: Simplify right side
    261,750.66x = 25,425,653,236.16
  5. Step 5: Solve for x
    x = 25,425,653,236.16/261,750.66
  6. Step 6: Final answer
    x = 97,136.92

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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.