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Finding the Fourth Proportional to 162,417.80, 224,137.86 and 90,800.84

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Solution

The fourth proportional to 162,417.80, 224,137.86 and 90,800.84 is: 125,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,417.80 : 224,137.86 = 90,800.84 : x
  2. Step 2: Convert to fraction form
    162,417.80/224,137.86 = 90,800.84/x
  3. Step 3: Cross multiply
    162,417.80x = 224,137.86 × 90,800.84
  4. Step 4: Simplify right side
    162,417.80x = 20,351,905,963.80
  5. Step 5: Solve for x
    x = 20,351,905,963.80/162,417.80
  6. Step 6: Final answer
    x = 125,305.88

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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.