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Finding the Fourth Proportional to 235,303.65, 352,963.76 and 75,384.45

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Solution

The fourth proportional to 235,303.65, 352,963.76 and 75,384.45 is: 113,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,303.65 : 352,963.76 = 75,384.45 : x
  2. Step 2: Convert to fraction form
    235,303.65/352,963.76 = 75,384.45/x
  3. Step 3: Cross multiply
    235,303.65x = 352,963.76 × 75,384.45
  4. Step 4: Simplify right side
    235,303.65x = 26,607,978,540.61
  5. Step 5: Solve for x
    x = 26,607,978,540.61/235,303.65
  6. Step 6: Final answer
    x = 113,079.33

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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.