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Finding the Fourth Proportional to 92,610.32, 138,948.74 and 36,419.31

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Solution

The fourth proportional to 92,610.32, 138,948.74 and 36,419.31 is: 54,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,610.32 : 138,948.74 = 36,419.31 : x
  2. Step 2: Convert to fraction form
    92,610.32/138,948.74 = 36,419.31/x
  3. Step 3: Cross multiply
    92,610.32x = 138,948.74 × 36,419.31
  4. Step 4: Simplify right side
    92,610.32x = 5,060,417,054.07
  5. Step 5: Solve for x
    x = 5,060,417,054.07/92,610.32
  6. Step 6: Final answer
    x = 54,642.05

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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.