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Finding the Fourth Proportional to 268,611.79, 370,685.01 and 147,765.46

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Solution

The fourth proportional to 268,611.79, 370,685.01 and 147,765.46 is: 203,916.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,611.79 : 370,685.01 = 147,765.46 : x
  2. Step 2: Convert to fraction form
    268,611.79/370,685.01 = 147,765.46/x
  3. Step 3: Cross multiply
    268,611.79x = 370,685.01 × 147,765.46
  4. Step 4: Simplify right side
    268,611.79x = 54,774,441,017.75
  5. Step 5: Solve for x
    x = 54,774,441,017.75/268,611.79
  6. Step 6: Final answer
    x = 203,916.74

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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.