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Finding the Fourth Proportional to 162,340.95, 224,029.85 and 90,720.95

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Solution

The fourth proportional to 162,340.95, 224,029.85 and 90,720.95 is: 125,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,340.95 : 224,029.85 = 90,720.95 : x
  2. Step 2: Convert to fraction form
    162,340.95/224,029.85 = 90,720.95/x
  3. Step 3: Cross multiply
    162,340.95x = 224,029.85 × 90,720.95
  4. Step 4: Simplify right side
    162,340.95x = 20,324,200,820.36
  5. Step 5: Solve for x
    x = 20,324,200,820.36/162,340.95
  6. Step 6: Final answer
    x = 125,194.54

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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.