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Finding the Fourth Proportional to 86,658.19, 130,009.19 and 24,328.69

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Solution

The fourth proportional to 86,658.19, 130,009.19 and 24,328.69 is: 36,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,658.19 : 130,009.19 = 24,328.69 : x
  2. Step 2: Convert to fraction form
    86,658.19/130,009.19 = 24,328.69/x
  3. Step 3: Cross multiply
    86,658.19x = 130,009.19 × 24,328.69
  4. Step 4: Simplify right side
    86,658.19x = 3,162,952,833.99
  5. Step 5: Solve for x
    x = 3,162,952,833.99/86,658.19
  6. Step 6: Final answer
    x = 36,499.18

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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.