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Finding the Fourth Proportional to 186,535.17, 279,835.98 and 86,807.97

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Solution

The fourth proportional to 186,535.17, 279,835.98 and 86,807.97 is: 130,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,535.17 : 279,835.98 = 86,807.97 : x
  2. Step 2: Convert to fraction form
    186,535.17/279,835.98 = 86,807.97/x
  3. Step 3: Cross multiply
    186,535.17x = 279,835.98 × 86,807.97
  4. Step 4: Simplify right side
    186,535.17x = 24,291,993,356.76
  5. Step 5: Solve for x
    x = 24,291,993,356.76/186,535.17
  6. Step 6: Final answer
    x = 130,227.42

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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.