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Finding the Fourth Proportional to 255,593.66, 383,561.13 and 89,381.66

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Solution

The fourth proportional to 255,593.66, 383,561.13 and 89,381.66 is: 134,132.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,593.66 : 383,561.13 = 89,381.66 : x
  2. Step 2: Convert to fraction form
    255,593.66/383,561.13 = 89,381.66/x
  3. Step 3: Cross multiply
    255,593.66x = 383,561.13 × 89,381.66
  4. Step 4: Simplify right side
    255,593.66x = 34,283,330,510.88
  5. Step 5: Solve for x
    x = 34,283,330,510.88/255,593.66
  6. Step 6: Final answer
    x = 134,132.16

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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.