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Finding the Fourth Proportional to 67,394.84, 101,205.05 and 64,712.93

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Solution

The fourth proportional to 67,394.84, 101,205.05 and 64,712.93 is: 97,177.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,394.84 : 101,205.05 = 64,712.93 : x
  2. Step 2: Convert to fraction form
    67,394.84/101,205.05 = 64,712.93/x
  3. Step 3: Cross multiply
    67,394.84x = 101,205.05 × 64,712.93
  4. Step 4: Simplify right side
    67,394.84x = 6,549,274,486.71
  5. Step 5: Solve for x
    x = 6,549,274,486.71/67,394.84
  6. Step 6: Final answer
    x = 97,177.69

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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.