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Finding the Fourth Proportional to 92,543.70, 127,705.11 and 52,265.64

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Solution

The fourth proportional to 92,543.70, 127,705.11 and 52,265.64 is: 72,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,543.70 : 127,705.11 = 52,265.64 : x
  2. Step 2: Convert to fraction form
    92,543.70/127,705.11 = 52,265.64/x
  3. Step 3: Cross multiply
    92,543.70x = 127,705.11 × 52,265.64
  4. Step 4: Simplify right side
    92,543.70x = 6,674,589,305.42
  5. Step 5: Solve for x
    x = 6,674,589,305.42/92,543.70
  6. Step 6: Final answer
    x = 72,123.65

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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.