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Finding the Fourth Proportional to 101,030.90, 151,349.52 and 61,489.94

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Solution

The fourth proportional to 101,030.90, 151,349.52 and 61,489.94 is: 92,115.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,030.90 : 151,349.52 = 61,489.94 : x
  2. Step 2: Convert to fraction form
    101,030.90/151,349.52 = 61,489.94/x
  3. Step 3: Cross multiply
    101,030.90x = 151,349.52 × 61,489.94
  4. Step 4: Simplify right side
    101,030.90x = 9,306,472,903.83
  5. Step 5: Solve for x
    x = 9,306,472,903.83/101,030.90
  6. Step 6: Final answer
    x = 92,115.11

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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.