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Finding the Fourth Proportional to 149,647.70, 224,471.55 and 70,915.70

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Solution

The fourth proportional to 149,647.70, 224,471.55 and 70,915.70 is: 106,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,647.70 : 224,471.55 = 70,915.70 : x
  2. Step 2: Convert to fraction form
    149,647.70/224,471.55 = 70,915.70/x
  3. Step 3: Cross multiply
    149,647.70x = 224,471.55 × 70,915.70
  4. Step 4: Simplify right side
    149,647.70x = 15,918,557,098.34
  5. Step 5: Solve for x
    x = 15,918,557,098.34/149,647.70
  6. Step 6: Final answer
    x = 106,373.55

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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.