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Finding the Fourth Proportional to 127,745.58, 176,294.34 and 71,156.94

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Solution

The fourth proportional to 127,745.58, 176,294.34 and 71,156.94 is: 98,199.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,745.58 : 176,294.34 = 71,156.94 : x
  2. Step 2: Convert to fraction form
    127,745.58/176,294.34 = 71,156.94/x
  3. Step 3: Cross multiply
    127,745.58x = 176,294.34 × 71,156.94
  4. Step 4: Simplify right side
    127,745.58x = 12,544,565,773.72
  5. Step 5: Solve for x
    x = 12,544,565,773.72/127,745.58
  6. Step 6: Final answer
    x = 98,199.61

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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.