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Finding the Fourth Proportional to 186,527.70, 279,572.37 and 86,477.31

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Solution

The fourth proportional to 186,527.70, 279,572.37 and 86,477.31 is: 129,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,527.70 : 279,572.37 = 86,477.31 : x
  2. Step 2: Convert to fraction form
    186,527.70/279,572.37 = 86,477.31/x
  3. Step 3: Cross multiply
    186,527.70x = 279,572.37 × 86,477.31
  4. Step 4: Simplify right side
    186,527.70x = 24,176,666,507.92
  5. Step 5: Solve for x
    x = 24,176,666,507.92/186,527.70
  6. Step 6: Final answer
    x = 129,614.35

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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.