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Finding the Fourth Proportional to 186,734.80, 279,664.80 and 127,248.40

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Solution

The fourth proportional to 186,734.80, 279,664.80 and 127,248.40 is: 190,574.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,734.80 : 279,664.80 = 127,248.40 : x
  2. Step 2: Convert to fraction form
    186,734.80/279,664.80 = 127,248.40/x
  3. Step 3: Cross multiply
    186,734.80x = 279,664.80 × 127,248.40
  4. Step 4: Simplify right side
    186,734.80x = 35,586,898,336.32
  5. Step 5: Solve for x
    x = 35,586,898,336.32/186,734.80
  6. Step 6: Final answer
    x = 190,574.54

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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.