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Finding the Fourth Proportional to 162,615.30, 224,418.52 and 90,994.70

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Solution

The fourth proportional to 162,615.30, 224,418.52 and 90,994.70 is: 125,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,615.30 : 224,418.52 = 90,994.70 : x
  2. Step 2: Convert to fraction form
    162,615.30/224,418.52 = 90,994.70/x
  3. Step 3: Cross multiply
    162,615.30x = 224,418.52 × 90,994.70
  4. Step 4: Simplify right side
    162,615.30x = 20,420,895,901.84
  5. Step 5: Solve for x
    x = 20,420,895,901.84/162,615.30
  6. Step 6: Final answer
    x = 125,577.95

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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.