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Finding the Fourth Proportional to 79,656.52, 119,417.82 and 53,280.76

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Solution

The fourth proportional to 79,656.52, 119,417.82 and 53,280.76 is: 79,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,656.52 : 119,417.82 = 53,280.76 : x
  2. Step 2: Convert to fraction form
    79,656.52/119,417.82 = 53,280.76/x
  3. Step 3: Cross multiply
    79,656.52x = 119,417.82 × 53,280.76
  4. Step 4: Simplify right side
    79,656.52x = 6,362,672,207.14
  5. Step 5: Solve for x
    x = 6,362,672,207.14/79,656.52
  6. Step 6: Final answer
    x = 79,876.35

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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.