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Finding the Fourth Proportional to 107,207.60, 160,811.40 and 67,809.20

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Solution

The fourth proportional to 107,207.60, 160,811.40 and 67,809.20 is: 101,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,207.60 : 160,811.40 = 67,809.20 : x
  2. Step 2: Convert to fraction form
    107,207.60/160,811.40 = 67,809.20/x
  3. Step 3: Cross multiply
    107,207.60x = 160,811.40 × 67,809.20
  4. Step 4: Simplify right side
    107,207.60x = 10,904,492,384.88
  5. Step 5: Solve for x
    x = 10,904,492,384.88/107,207.60
  6. Step 6: Final answer
    x = 101,713.80

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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.