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Finding the Fourth Proportional to 268,666.31, 370,759.50 and 147,805.01

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Solution

The fourth proportional to 268,666.31, 370,759.50 and 147,805.01 is: 203,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,666.31 : 370,759.50 = 147,805.01 : x
  2. Step 2: Convert to fraction form
    268,666.31/370,759.50 = 147,805.01/x
  3. Step 3: Cross multiply
    268,666.31x = 370,759.50 × 147,805.01
  4. Step 4: Simplify right side
    268,666.31x = 54,800,109,751.30
  5. Step 5: Solve for x
    x = 54,800,109,751.30/268,666.31
  6. Step 6: Final answer
    x = 203,970.90

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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.