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Finding the Fourth Proportional to 235,365.90, 353,040.66 and 75,439.50

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Solution

The fourth proportional to 235,365.90, 353,040.66 and 75,439.50 is: 113,156.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,365.90 : 353,040.66 = 75,439.50 : x
  2. Step 2: Convert to fraction form
    235,365.90/353,040.66 = 75,439.50/x
  3. Step 3: Cross multiply
    235,365.90x = 353,040.66 × 75,439.50
  4. Step 4: Simplify right side
    235,365.90x = 26,633,210,870.07
  5. Step 5: Solve for x
    x = 26,633,210,870.07/235,365.90
  6. Step 6: Final answer
    x = 113,156.62

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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.