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Finding the Fourth Proportional to 268,756.76, 370,486.74 and 171,950.18

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Solution

The fourth proportional to 268,756.76, 370,486.74 and 171,950.18 is: 237,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,756.76 : 370,486.74 = 171,950.18 : x
  2. Step 2: Convert to fraction form
    268,756.76/370,486.74 = 171,950.18/x
  3. Step 3: Cross multiply
    268,756.76x = 370,486.74 × 171,950.18
  4. Step 4: Simplify right side
    268,756.76x = 63,705,261,630.61
  5. Step 5: Solve for x
    x = 63,705,261,630.61/268,756.76
  6. Step 6: Final answer
    x = 237,036.87

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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.