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Finding the Fourth Proportional to 120,357.68, 166,108.02 and 70,056.68

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Solution

The fourth proportional to 120,357.68, 166,108.02 and 70,056.68 is: 96,686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,357.68 : 166,108.02 = 70,056.68 : x
  2. Step 2: Convert to fraction form
    120,357.68/166,108.02 = 70,056.68/x
  3. Step 3: Cross multiply
    120,357.68x = 166,108.02 × 70,056.68
  4. Step 4: Simplify right side
    120,357.68x = 11,636,976,402.57
  5. Step 5: Solve for x
    x = 11,636,976,402.57/120,357.68
  6. Step 6: Final answer
    x = 96,686.61

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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.