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Finding the Fourth Proportional to 86,717.95, 130,076.94 and 24,388.45

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Solution

The fourth proportional to 86,717.95, 130,076.94 and 24,388.45 is: 36,582.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,717.95 : 130,076.94 = 24,388.45 : x
  2. Step 2: Convert to fraction form
    86,717.95/130,076.94 = 24,388.45/x
  3. Step 3: Cross multiply
    86,717.95x = 130,076.94 × 24,388.45
  4. Step 4: Simplify right side
    86,717.95x = 3,172,374,947.34
  5. Step 5: Solve for x
    x = 3,172,374,947.34/86,717.95
  6. Step 6: Final answer
    x = 36,582.68

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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.