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Finding the Fourth Proportional to 354,705.90, 532,058.85 and 168,081.90

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Solution

The fourth proportional to 354,705.90, 532,058.85 and 168,081.90 is: 252,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,705.90 : 532,058.85 = 168,081.90 : x
  2. Step 2: Convert to fraction form
    354,705.90/532,058.85 = 168,081.90/x
  3. Step 3: Cross multiply
    354,705.90x = 532,058.85 × 168,081.90
  4. Step 4: Simplify right side
    354,705.90x = 89,429,462,419.82
  5. Step 5: Solve for x
    x = 89,429,462,419.82/354,705.90
  6. Step 6: Final answer
    x = 252,122.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.