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Finding the Fourth Proportional to 113,110.70, 156,086.70 and 62,113.50

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Solution

The fourth proportional to 113,110.70, 156,086.70 and 62,113.50 is: 85,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,110.70 : 156,086.70 = 62,113.50 : x
  2. Step 2: Convert to fraction form
    113,110.70/156,086.70 = 62,113.50/x
  3. Step 3: Cross multiply
    113,110.70x = 156,086.70 × 62,113.50
  4. Step 4: Simplify right side
    113,110.70x = 9,695,091,007.52
  5. Step 5: Solve for x
    x = 9,695,091,007.52/113,110.70
  6. Step 6: Final answer
    x = 85,713.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.