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Finding the Fourth Proportional to 113,800.70, 170,701.05 and 76,475.90

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Solution

The fourth proportional to 113,800.70, 170,701.05 and 76,475.90 is: 114,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,800.70 : 170,701.05 = 76,475.90 : x
  2. Step 2: Convert to fraction form
    113,800.70/170,701.05 = 76,475.90/x
  3. Step 3: Cross multiply
    113,800.70x = 170,701.05 × 76,475.90
  4. Step 4: Simplify right side
    113,800.70x = 13,054,516,429.70
  5. Step 5: Solve for x
    x = 13,054,516,429.70/113,800.70
  6. Step 6: Final answer
    x = 114,713.85

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1.5x scale

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.