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Finding the Fourth Proportional to 160,072.01, 240,149.53 and 85,130.53

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Solution

The fourth proportional to 160,072.01, 240,149.53 and 85,130.53 is: 127,717.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,072.01 : 240,149.53 = 85,130.53 : x
  2. Step 2: Convert to fraction form
    160,072.01/240,149.53 = 85,130.53/x
  3. Step 3: Cross multiply
    160,072.01x = 240,149.53 × 85,130.53
  4. Step 4: Simplify right side
    160,072.01x = 20,444,057,526.75
  5. Step 5: Solve for x
    x = 20,444,057,526.75/160,072.01
  6. Step 6: Final answer
    x = 127,717.88

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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.