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Finding the Fourth Proportional to 114,891.60, 172,342.80 and 36,008.40

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Solution

The fourth proportional to 114,891.60, 172,342.80 and 36,008.40 is: 54,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,891.60 : 172,342.80 = 36,008.40 : x
  2. Step 2: Convert to fraction form
    114,891.60/172,342.80 = 36,008.40/x
  3. Step 3: Cross multiply
    114,891.60x = 172,342.80 × 36,008.40
  4. Step 4: Simplify right side
    114,891.60x = 6,205,788,479.52
  5. Step 5: Solve for x
    x = 6,205,788,479.52/114,891.60
  6. Step 6: Final answer
    x = 54,014.29

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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.