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Finding the Fourth Proportional to 186,203.52, 279,139.16 and 154,870.63

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Solution

The fourth proportional to 186,203.52, 279,139.16 and 154,870.63 is: 232,167.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,203.52 : 279,139.16 = 154,870.63 : x
  2. Step 2: Convert to fraction form
    186,203.52/279,139.16 = 154,870.63/x
  3. Step 3: Cross multiply
    186,203.52x = 279,139.16 × 154,870.63
  4. Step 4: Simplify right side
    186,203.52x = 43,230,457,256.20
  5. Step 5: Solve for x
    x = 43,230,457,256.20/186,203.52
  6. Step 6: Final answer
    x = 232,167.78

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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.