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Finding the Fourth Proportional to 162,915.68, 224,826.36 and 91,311.68

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Solution

The fourth proportional to 162,915.68, 224,826.36 and 91,311.68 is: 126,011.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,915.68 : 224,826.36 = 91,311.68 : x
  2. Step 2: Convert to fraction form
    162,915.68/224,826.36 = 91,311.68/x
  3. Step 3: Cross multiply
    162,915.68x = 224,826.36 × 91,311.68
  4. Step 4: Simplify right side
    162,915.68x = 20,529,272,639.88
  5. Step 5: Solve for x
    x = 20,529,272,639.88/162,915.68
  6. Step 6: Final answer
    x = 126,011.64

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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.