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Finding the Fourth Proportional to 119,445.96, 164,836.20 and 65,729.46

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Solution

The fourth proportional to 119,445.96, 164,836.20 and 65,729.46 is: 90,707.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,445.96 : 164,836.20 = 65,729.46 : x
  2. Step 2: Convert to fraction form
    119,445.96/164,836.20 = 65,729.46/x
  3. Step 3: Cross multiply
    119,445.96x = 164,836.20 × 65,729.46
  4. Step 4: Simplify right side
    119,445.96x = 10,834,594,414.45
  5. Step 5: Solve for x
    x = 10,834,594,414.45/119,445.96
  6. Step 6: Final answer
    x = 90,707.08

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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.