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Finding the Fourth Proportional to 160,113.78, 220,791.60 and 137,527.74

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Solution

The fourth proportional to 160,113.78, 220,791.60 and 137,527.74 is: 189,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,113.78 : 220,791.60 = 137,527.74 : x
  2. Step 2: Convert to fraction form
    160,113.78/220,791.60 = 137,527.74/x
  3. Step 3: Cross multiply
    160,113.78x = 220,791.60 × 137,527.74
  4. Step 4: Simplify right side
    160,113.78x = 30,364,969,758.98
  5. Step 5: Solve for x
    x = 30,364,969,758.98/160,113.78
  6. Step 6: Final answer
    x = 189,646.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.