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Finding the Fourth Proportional to 86,207.68, 119,025.16 and 63,549.28

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Solution

The fourth proportional to 86,207.68, 119,025.16 and 63,549.28 is: 87,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,207.68 : 119,025.16 = 63,549.28 : x
  2. Step 2: Convert to fraction form
    86,207.68/119,025.16 = 63,549.28/x
  3. Step 3: Cross multiply
    86,207.68x = 119,025.16 × 63,549.28
  4. Step 4: Simplify right side
    86,207.68x = 7,563,963,219.88
  5. Step 5: Solve for x
    x = 7,563,963,219.88/86,207.68
  6. Step 6: Final answer
    x = 87,741.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.