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Finding the Fourth Proportional to 86,593.90, 130,000.20 and 46,644.70

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Solution

The fourth proportional to 86,593.90, 130,000.20 and 46,644.70 is: 70,025.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,593.90 : 130,000.20 = 46,644.70 : x
  2. Step 2: Convert to fraction form
    86,593.90/130,000.20 = 46,644.70/x
  3. Step 3: Cross multiply
    86,593.90x = 130,000.20 × 46,644.70
  4. Step 4: Simplify right side
    86,593.90x = 6,063,820,328.94
  5. Step 5: Solve for x
    x = 6,063,820,328.94/86,593.90
  6. Step 6: Final answer
    x = 70,025.95

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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.