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Finding the Fourth Proportional to 359,232.22, 538,861.05 and 89,361.76

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Solution

The fourth proportional to 359,232.22, 538,861.05 and 89,361.76 is: 134,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,232.22 : 538,861.05 = 89,361.76 : x
  2. Step 2: Convert to fraction form
    359,232.22/538,861.05 = 89,361.76/x
  3. Step 3: Cross multiply
    359,232.22x = 538,861.05 × 89,361.76
  4. Step 4: Simplify right side
    359,232.22x = 48,153,572,832.13
  5. Step 5: Solve for x
    x = 48,153,572,832.13/359,232.22
  6. Step 6: Final answer
    x = 134,045.81

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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.