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Finding the Fourth Proportional to 107,487.20, 160,923.60 and 66,015.20

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Solution

The fourth proportional to 107,487.20, 160,923.60 and 66,015.20 is: 98,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,487.20 : 160,923.60 = 66,015.20 : x
  2. Step 2: Convert to fraction form
    107,487.20/160,923.60 = 66,015.20/x
  3. Step 3: Cross multiply
    107,487.20x = 160,923.60 × 66,015.20
  4. Step 4: Simplify right side
    107,487.20x = 10,623,403,638.72
  5. Step 5: Solve for x
    x = 10,623,403,638.72/107,487.20
  6. Step 6: Final answer
    x = 98,834.13

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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.