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Finding the Fourth Proportional to 268,656.32, 370,740.56 and 147,790.56

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Solution

The fourth proportional to 268,656.32, 370,740.56 and 147,790.56 is: 203,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,656.32 : 370,740.56 = 147,790.56 : x
  2. Step 2: Convert to fraction form
    268,656.32/370,740.56 = 147,790.56/x
  3. Step 3: Cross multiply
    268,656.32x = 370,740.56 × 147,790.56
  4. Step 4: Simplify right side
    268,656.32x = 54,791,954,977.11
  5. Step 5: Solve for x
    x = 54,791,954,977.11/268,656.32
  6. Step 6: Final answer
    x = 203,948.13

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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.