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Finding the Fourth Proportional to 127,432.62, 175,865.67 and 84,337.77

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Solution

The fourth proportional to 127,432.62, 175,865.67 and 84,337.77 is: 116,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,432.62 : 175,865.67 = 84,337.77 : x
  2. Step 2: Convert to fraction form
    127,432.62/175,865.67 = 84,337.77/x
  3. Step 3: Cross multiply
    127,432.62x = 175,865.67 × 84,337.77
  4. Step 4: Simplify right side
    127,432.62x = 14,832,118,427.36
  5. Step 5: Solve for x
    x = 14,832,118,427.36/127,432.62
  6. Step 6: Final answer
    x = 116,391.85

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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.