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Finding the Fourth Proportional to 121,854.66, 182,796.56 and 42,952.56

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Solution

The fourth proportional to 121,854.66, 182,796.56 and 42,952.56 is: 64,433.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,854.66 : 182,796.56 = 42,952.56 : x
  2. Step 2: Convert to fraction form
    121,854.66/182,796.56 = 42,952.56/x
  3. Step 3: Cross multiply
    121,854.66x = 182,796.56 × 42,952.56
  4. Step 4: Simplify right side
    121,854.66x = 7,851,580,211.19
  5. Step 5: Solve for x
    x = 7,851,580,211.19/121,854.66
  6. Step 6: Final answer
    x = 64,433.98

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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.