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Finding the Fourth Proportional to 67,098.78, 92,609.73 and 51,154.74

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Solution

The fourth proportional to 67,098.78, 92,609.73 and 51,154.74 is: 70,603.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,098.78 : 92,609.73 = 51,154.74 : x
  2. Step 2: Convert to fraction form
    67,098.78/92,609.73 = 51,154.74/x
  3. Step 3: Cross multiply
    67,098.78x = 92,609.73 × 51,154.74
  4. Step 4: Simplify right side
    67,098.78x = 4,737,426,659.62
  5. Step 5: Solve for x
    x = 4,737,426,659.62/67,098.78
  6. Step 6: Final answer
    x = 70,603.77

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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.