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Finding the Fourth Proportional to 235,280.90, 352,402.95 and 141,623.30

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Solution

The fourth proportional to 235,280.90, 352,402.95 and 141,623.30 is: 212,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,280.90 : 352,402.95 = 141,623.30 : x
  2. Step 2: Convert to fraction form
    235,280.90/352,402.95 = 141,623.30/x
  3. Step 3: Cross multiply
    235,280.90x = 352,402.95 × 141,623.30
  4. Step 4: Simplify right side
    235,280.90x = 49,908,468,708.74
  5. Step 5: Solve for x
    x = 49,908,468,708.74/235,280.90
  6. Step 6: Final answer
    x = 212,122.91

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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.