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Finding the Fourth Proportional to 107,074.80, 160,612.20 and 75,970.80

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Solution

The fourth proportional to 107,074.80, 160,612.20 and 75,970.80 is: 113,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,074.80 : 160,612.20 = 75,970.80 : x
  2. Step 2: Convert to fraction form
    107,074.80/160,612.20 = 75,970.80/x
  3. Step 3: Cross multiply
    107,074.80x = 160,612.20 × 75,970.80
  4. Step 4: Simplify right side
    107,074.80x = 12,201,837,323.76
  5. Step 5: Solve for x
    x = 12,201,837,323.76/107,074.80
  6. Step 6: Final answer
    x = 113,956.20

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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.