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Finding the Fourth Proportional to 373,254.48, 559,943.28 and 136,928.88

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Solution

The fourth proportional to 373,254.48, 559,943.28 and 136,928.88 is: 205,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,254.48 : 559,943.28 = 136,928.88 : x
  2. Step 2: Convert to fraction form
    373,254.48/559,943.28 = 136,928.88/x
  3. Step 3: Cross multiply
    373,254.48x = 559,943.28 × 136,928.88
  4. Step 4: Simplify right side
    373,254.48x = 76,672,406,193.93
  5. Step 5: Solve for x
    x = 76,672,406,193.93/373,254.48
  6. Step 6: Final answer
    x = 205,415.90

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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.