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Finding the Fourth Proportional to 156,969.60, 235,449.15 and 68,223.12

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Solution

The fourth proportional to 156,969.60, 235,449.15 and 68,223.12 is: 102,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,969.60 : 235,449.15 = 68,223.12 : x
  2. Step 2: Convert to fraction form
    156,969.60/235,449.15 = 68,223.12/x
  3. Step 3: Cross multiply
    156,969.60x = 235,449.15 × 68,223.12
  4. Step 4: Simplify right side
    156,969.60x = 16,063,075,614.35
  5. Step 5: Solve for x
    x = 16,063,075,614.35/156,969.60
  6. Step 6: Final answer
    x = 102,332.40

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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.