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Finding the Fourth Proportional to 73,702.76, 101,709.84 and 40,168.76

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Solution

The fourth proportional to 73,702.76, 101,709.84 and 40,168.76 is: 55,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,702.76 : 101,709.84 = 40,168.76 : x
  2. Step 2: Convert to fraction form
    73,702.76/101,709.84 = 40,168.76/x
  3. Step 3: Cross multiply
    73,702.76x = 101,709.84 × 40,168.76
  4. Step 4: Simplify right side
    73,702.76x = 4,085,558,152.60
  5. Step 5: Solve for x
    x = 4,085,558,152.60/73,702.76
  6. Step 6: Final answer
    x = 55,432.91

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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.