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Finding the Fourth Proportional to 145,915.44, 218,882.88 and 46,079.70

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Solution

The fourth proportional to 145,915.44, 218,882.88 and 46,079.70 is: 69,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,915.44 : 218,882.88 = 46,079.70 : x
  2. Step 2: Convert to fraction form
    145,915.44/218,882.88 = 46,079.70/x
  3. Step 3: Cross multiply
    145,915.44x = 218,882.88 × 46,079.70
  4. Step 4: Simplify right side
    145,915.44x = 10,086,057,445.54
  5. Step 5: Solve for x
    x = 10,086,057,445.54/145,915.44
  6. Step 6: Final answer
    x = 69,122.62

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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.