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Finding the Fourth Proportional to 104,007.46, 156,031.38 and 39,960.90

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Solution

The fourth proportional to 104,007.46, 156,031.38 and 39,960.90 is: 59,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,007.46 : 156,031.38 = 39,960.90 : x
  2. Step 2: Convert to fraction form
    104,007.46/156,031.38 = 39,960.90/x
  3. Step 3: Cross multiply
    104,007.46x = 156,031.38 × 39,960.90
  4. Step 4: Simplify right side
    104,007.46x = 6,235,154,373.04
  5. Step 5: Solve for x
    x = 6,235,154,373.04/104,007.46
  6. Step 6: Final answer
    x = 59,949.11

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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.