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Finding the Fourth Proportional to 186,655.59, 278,620.70 and 160,171.76

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Solution

The fourth proportional to 186,655.59, 278,620.70 and 160,171.76 is: 239,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,655.59 : 278,620.70 = 160,171.76 : x
  2. Step 2: Convert to fraction form
    186,655.59/278,620.70 = 160,171.76/x
  3. Step 3: Cross multiply
    186,655.59x = 278,620.70 × 160,171.76
  4. Step 4: Simplify right side
    186,655.59x = 44,627,167,787.12
  5. Step 5: Solve for x
    x = 44,627,167,787.12/186,655.59
  6. Step 6: Final answer
    x = 239,088.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.