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Finding the Fourth Proportional to 395,787.60, 593,681.40 and 159,008.40

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Solution

The fourth proportional to 395,787.60, 593,681.40 and 159,008.40 is: 238,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,787.60 : 593,681.40 = 159,008.40 : x
  2. Step 2: Convert to fraction form
    395,787.60/593,681.40 = 159,008.40/x
  3. Step 3: Cross multiply
    395,787.60x = 593,681.40 × 159,008.40
  4. Step 4: Simplify right side
    395,787.60x = 94,400,329,523.76
  5. Step 5: Solve for x
    x = 94,400,329,523.76/395,787.60
  6. Step 6: Final answer
    x = 238,512.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.