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Finding the Fourth Proportional to 186,312.28, 279,551.48 and 67,955.95

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Solution

The fourth proportional to 186,312.28, 279,551.48 and 67,955.95 is: 101,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,312.28 : 279,551.48 = 67,955.95 : x
  2. Step 2: Convert to fraction form
    186,312.28/279,551.48 = 67,955.95/x
  3. Step 3: Cross multiply
    186,312.28x = 279,551.48 × 67,955.95
  4. Step 4: Simplify right side
    186,312.28x = 18,997,186,397.31
  5. Step 5: Solve for x
    x = 18,997,186,397.31/186,312.28
  6. Step 6: Final answer
    x = 101,964.22

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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.