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Finding the Fourth Proportional to 126,499.84, 189,877.84 and 63,365.20

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Solution

The fourth proportional to 126,499.84, 189,877.84 and 63,365.20 is: 95,111.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,499.84 : 189,877.84 = 63,365.20 : x
  2. Step 2: Convert to fraction form
    126,499.84/189,877.84 = 63,365.20/x
  3. Step 3: Cross multiply
    126,499.84x = 189,877.84 × 63,365.20
  4. Step 4: Simplify right side
    126,499.84x = 12,031,647,307.17
  5. Step 5: Solve for x
    x = 12,031,647,307.17/126,499.84
  6. Step 6: Final answer
    x = 95,111.96

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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.