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Finding the Fourth Proportional to 162,515.57, 224,253.36 and 90,894.15

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Solution

The fourth proportional to 162,515.57, 224,253.36 and 90,894.15 is: 125,423.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,515.57 : 224,253.36 = 90,894.15 : x
  2. Step 2: Convert to fraction form
    162,515.57/224,253.36 = 90,894.15/x
  3. Step 3: Cross multiply
    162,515.57x = 224,253.36 × 90,894.15
  4. Step 4: Simplify right side
    162,515.57x = 20,383,318,541.84
  5. Step 5: Solve for x
    x = 20,383,318,541.84/162,515.57
  6. Step 6: Final answer
    x = 125,423.79

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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.