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Finding the Fourth Proportional to 67,998.39, 101,314.14 and 64,178.58

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Solution

The fourth proportional to 67,998.39, 101,314.14 and 64,178.58 is: 95,622.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,998.39 : 101,314.14 = 64,178.58 : x
  2. Step 2: Convert to fraction form
    67,998.39/101,314.14 = 64,178.58/x
  3. Step 3: Cross multiply
    67,998.39x = 101,314.14 × 64,178.58
  4. Step 4: Simplify right side
    67,998.39x = 6,502,197,569.49
  5. Step 5: Solve for x
    x = 6,502,197,569.49/67,998.39
  6. Step 6: Final answer
    x = 95,622.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.