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Finding the Fourth Proportional to 242,267.80, 363,417.90 and 82,341.40

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Solution

The fourth proportional to 242,267.80, 363,417.90 and 82,341.40 is: 123,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,267.80 : 363,417.90 = 82,341.40 : x
  2. Step 2: Convert to fraction form
    242,267.80/363,417.90 = 82,341.40/x
  3. Step 3: Cross multiply
    242,267.80x = 363,417.90 × 82,341.40
  4. Step 4: Simplify right side
    242,267.80x = 29,924,338,671.06
  5. Step 5: Solve for x
    x = 29,924,338,671.06/242,267.80
  6. Step 6: Final answer
    x = 123,517.61

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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.