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Finding the Fourth Proportional to 238,656.73, 357,984.96 and 70,178.46

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Solution

The fourth proportional to 238,656.73, 357,984.96 and 70,178.46 is: 105,267.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,656.73 : 357,984.96 = 70,178.46 : x
  2. Step 2: Convert to fraction form
    238,656.73/357,984.96 = 70,178.46/x
  3. Step 3: Cross multiply
    238,656.73x = 357,984.96 × 70,178.46
  4. Step 4: Simplify right side
    238,656.73x = 25,122,833,195.96
  5. Step 5: Solve for x
    x = 25,122,833,195.96/238,656.73
  6. Step 6: Final answer
    x = 105,267.65

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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.