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Finding the Fourth Proportional to 121,508.70, 182,263.05 and 106,746.45

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Solution

The fourth proportional to 121,508.70, 182,263.05 and 106,746.45 is: 160,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,508.70 : 182,263.05 = 106,746.45 : x
  2. Step 2: Convert to fraction form
    121,508.70/182,263.05 = 106,746.45/x
  3. Step 3: Cross multiply
    121,508.70x = 182,263.05 × 106,746.45
  4. Step 4: Simplify right side
    121,508.70x = 19,455,933,553.67
  5. Step 5: Solve for x
    x = 19,455,933,553.67/121,508.70
  6. Step 6: Final answer
    x = 160,119.68

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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.