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Finding the Fourth Proportional to 186,505.97, 279,752.12 and 53,386.03

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Solution

The fourth proportional to 186,505.97, 279,752.12 and 53,386.03 is: 80,077.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,505.97 : 279,752.12 = 53,386.03 : x
  2. Step 2: Convert to fraction form
    186,505.97/279,752.12 = 53,386.03/x
  3. Step 3: Cross multiply
    186,505.97x = 279,752.12 × 53,386.03
  4. Step 4: Simplify right side
    186,505.97x = 14,934,853,405.19
  5. Step 5: Solve for x
    x = 14,934,853,405.19/186,505.97
  6. Step 6: Final answer
    x = 80,077.08

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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.