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Finding the Fourth Proportional to 268,073.80, 370,024.89 and 172,580.50

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Solution

The fourth proportional to 268,073.80, 370,024.89 and 172,580.50 is: 238,214.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,073.80 : 370,024.89 = 172,580.50 : x
  2. Step 2: Convert to fraction form
    268,073.80/370,024.89 = 172,580.50/x
  3. Step 3: Cross multiply
    268,073.80x = 370,024.89 × 172,580.50
  4. Step 4: Simplify right side
    268,073.80x = 63,859,080,528.65
  5. Step 5: Solve for x
    x = 63,859,080,528.65/268,073.80
  6. Step 6: Final answer
    x = 238,214.55

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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.