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Finding the Fourth Proportional to 186,368.10, 279,552.15 and 156,843.60

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Solution

The fourth proportional to 186,368.10, 279,552.15 and 156,843.60 is: 235,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,368.10 : 279,552.15 = 156,843.60 : x
  2. Step 2: Convert to fraction form
    186,368.10/279,552.15 = 156,843.60/x
  3. Step 3: Cross multiply
    186,368.10x = 279,552.15 × 156,843.60
  4. Step 4: Simplify right side
    186,368.10x = 43,845,965,593.74
  5. Step 5: Solve for x
    x = 43,845,965,593.74/186,368.10
  6. Step 6: Final answer
    x = 235,265.40

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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.