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Finding the Fourth Proportional to 92,311.55, 127,390.05 and 49,870.08

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Solution

The fourth proportional to 92,311.55, 127,390.05 and 49,870.08 is: 68,820.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,311.55 : 127,390.05 = 49,870.08 : x
  2. Step 2: Convert to fraction form
    92,311.55/127,390.05 = 49,870.08/x
  3. Step 3: Cross multiply
    92,311.55x = 127,390.05 × 49,870.08
  4. Step 4: Simplify right side
    92,311.55x = 6,352,951,984.70
  5. Step 5: Solve for x
    x = 6,352,951,984.70/92,311.55
  6. Step 6: Final answer
    x = 68,820.77

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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.