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Finding the Fourth Proportional to 162,406.54, 224,122.62 and 90,790.48

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Solution

The fourth proportional to 162,406.54, 224,122.62 and 90,790.48 is: 125,291.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,406.54 : 224,122.62 = 90,790.48 : x
  2. Step 2: Convert to fraction form
    162,406.54/224,122.62 = 90,790.48/x
  3. Step 3: Cross multiply
    162,406.54x = 224,122.62 × 90,790.48
  4. Step 4: Simplify right side
    162,406.54x = 20,348,200,248.66
  5. Step 5: Solve for x
    x = 20,348,200,248.66/162,406.54
  6. Step 6: Final answer
    x = 125,291.75

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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.