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Finding the Fourth Proportional to 78,816.52, 118,206.96 and 22,656.52

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Solution

The fourth proportional to 78,816.52, 118,206.96 and 22,656.52 is: 33,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,816.52 : 118,206.96 = 22,656.52 : x
  2. Step 2: Convert to fraction form
    78,816.52/118,206.96 = 22,656.52/x
  3. Step 3: Cross multiply
    78,816.52x = 118,206.96 × 22,656.52
  4. Step 4: Simplify right side
    78,816.52x = 2,678,158,353.38
  5. Step 5: Solve for x
    x = 2,678,158,353.38/78,816.52
  6. Step 6: Final answer
    x = 33,979.66

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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.