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Finding the Fourth Proportional to 86,885.93, 130,343.78 and 36,966.44

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Solution

The fourth proportional to 86,885.93, 130,343.78 and 36,966.44 is: 55,456.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,885.93 : 130,343.78 = 36,966.44 : x
  2. Step 2: Convert to fraction form
    86,885.93/130,343.78 = 36,966.44/x
  3. Step 3: Cross multiply
    86,885.93x = 130,343.78 × 36,966.44
  4. Step 4: Simplify right side
    86,885.93x = 4,818,345,941.02
  5. Step 5: Solve for x
    x = 4,818,345,941.02/86,885.93
  6. Step 6: Final answer
    x = 55,456.00

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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.