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Finding the Fourth Proportional to 121,567.90, 182,351.85 and 121,567.90

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Solution

The fourth proportional to 121,567.90, 182,351.85 and 121,567.90 is: 182,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,567.90 : 182,351.85 = 121,567.90 : x
  2. Step 2: Convert to fraction form
    121,567.90/182,351.85 = 121,567.90/x
  3. Step 3: Cross multiply
    121,567.90x = 182,351.85 × 121,567.90
  4. Step 4: Simplify right side
    121,567.90x = 22,168,131,465.62
  5. Step 5: Solve for x
    x = 22,168,131,465.62/121,567.90
  6. Step 6: Final answer
    x = 182,351.85

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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.