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Finding the Fourth Proportional to 262,170.80, 393,353.40 and 104,512.40

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Solution

The fourth proportional to 262,170.80, 393,353.40 and 104,512.40 is: 156,807.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,170.80 : 393,353.40 = 104,512.40 : x
  2. Step 2: Convert to fraction form
    262,170.80/393,353.40 = 104,512.40/x
  3. Step 3: Cross multiply
    262,170.80x = 393,353.40 × 104,512.40
  4. Step 4: Simplify right side
    262,170.80x = 41,110,307,882.16
  5. Step 5: Solve for x
    x = 41,110,307,882.16/262,170.80
  6. Step 6: Final answer
    x = 156,807.35

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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.