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Finding the Fourth Proportional to 242,159.71, 363,239.93 and 115,770.25

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Solution

The fourth proportional to 242,159.71, 363,239.93 and 115,770.25 is: 173,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,159.71 : 363,239.93 = 115,770.25 : x
  2. Step 2: Convert to fraction form
    242,159.71/363,239.93 = 115,770.25/x
  3. Step 3: Cross multiply
    242,159.71x = 363,239.93 × 115,770.25
  4. Step 4: Simplify right side
    242,159.71x = 42,052,377,506.08
  5. Step 5: Solve for x
    x = 42,052,377,506.08/242,159.71
  6. Step 6: Final answer
    x = 173,655.55

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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.