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Finding the Fourth Proportional to 186,229.53, 256,978.95 and 104,539.08

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Solution

The fourth proportional to 186,229.53, 256,978.95 and 104,539.08 is: 144,253.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,229.53 : 256,978.95 = 104,539.08 : x
  2. Step 2: Convert to fraction form
    186,229.53/256,978.95 = 104,539.08/x
  3. Step 3: Cross multiply
    186,229.53x = 256,978.95 × 104,539.08
  4. Step 4: Simplify right side
    186,229.53x = 26,864,343,012.37
  5. Step 5: Solve for x
    x = 26,864,343,012.37/186,229.53
  6. Step 6: Final answer
    x = 144,253.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.