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Finding the Fourth Proportional to 156,734.60, 235,101.90 and 112,775.90

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Solution

The fourth proportional to 156,734.60, 235,101.90 and 112,775.90 is: 169,163.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.60 : 235,101.90 = 112,775.90 : x
  2. Step 2: Convert to fraction form
    156,734.60/235,101.90 = 112,775.90/x
  3. Step 3: Cross multiply
    156,734.60x = 235,101.90 × 112,775.90
  4. Step 4: Simplify right side
    156,734.60x = 26,513,828,364.21
  5. Step 5: Solve for x
    x = 26,513,828,364.21/156,734.60
  6. Step 6: Final answer
    x = 169,163.85

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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.