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Finding the Fourth Proportional to 186,281.76, 279,425.52 and 103,700.64

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Solution

The fourth proportional to 186,281.76, 279,425.52 and 103,700.64 is: 155,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,281.76 : 279,425.52 = 103,700.64 : x
  2. Step 2: Convert to fraction form
    186,281.76/279,425.52 = 103,700.64/x
  3. Step 3: Cross multiply
    186,281.76x = 279,425.52 × 103,700.64
  4. Step 4: Simplify right side
    186,281.76x = 28,976,605,256.33
  5. Step 5: Solve for x
    x = 28,976,605,256.33/186,281.76
  6. Step 6: Final answer
    x = 155,552.56

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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.