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Finding the Fourth Proportional to 113,490.60, 170,235.90 and 95,775.90

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Solution

The fourth proportional to 113,490.60, 170,235.90 and 95,775.90 is: 143,663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,490.60 : 170,235.90 = 95,775.90 : x
  2. Step 2: Convert to fraction form
    113,490.60/170,235.90 = 95,775.90/x
  3. Step 3: Cross multiply
    113,490.60x = 170,235.90 × 95,775.90
  4. Step 4: Simplify right side
    113,490.60x = 16,304,496,534.81
  5. Step 5: Solve for x
    x = 16,304,496,534.81/113,490.60
  6. Step 6: Final answer
    x = 143,663.85

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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.