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Finding the Fourth Proportional to 85,360.80, 127,868.40 and 59,095.20

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Solution

The fourth proportional to 85,360.80, 127,868.40 and 59,095.20 is: 88,523.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,360.80 : 127,868.40 = 59,095.20 : x
  2. Step 2: Convert to fraction form
    85,360.80/127,868.40 = 59,095.20/x
  3. Step 3: Cross multiply
    85,360.80x = 127,868.40 × 59,095.20
  4. Step 4: Simplify right side
    85,360.80x = 7,556,408,671.68
  5. Step 5: Solve for x
    x = 7,556,408,671.68/85,360.80
  6. Step 6: Final answer
    x = 88,523.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.