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Finding the Fourth Proportional to 151,723.90, 212,724.50 and 151,723.90

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Solution

The fourth proportional to 151,723.90, 212,724.50 and 151,723.90 is: 212,724.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,723.90 : 212,724.50 = 151,723.90 : x
  2. Step 2: Convert to fraction form
    151,723.90/212,724.50 = 151,723.90/x
  3. Step 3: Cross multiply
    151,723.90x = 212,724.50 × 151,723.90
  4. Step 4: Simplify right side
    151,723.90x = 32,275,390,765.55
  5. Step 5: Solve for x
    x = 32,275,390,765.55/151,723.90
  6. Step 6: Final answer
    x = 212,724.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.