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Finding the Fourth Proportional to 101,789.55, 152,681.85 and 39,460.05

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Solution

The fourth proportional to 101,789.55, 152,681.85 and 39,460.05 is: 59,189.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,789.55 : 152,681.85 = 39,460.05 : x
  2. Step 2: Convert to fraction form
    101,789.55/152,681.85 = 39,460.05/x
  3. Step 3: Cross multiply
    101,789.55x = 152,681.85 × 39,460.05
  4. Step 4: Simplify right side
    101,789.55x = 6,024,833,435.09
  5. Step 5: Solve for x
    x = 6,024,833,435.09/101,789.55
  6. Step 6: Final answer
    x = 59,189.12

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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.