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Finding the Fourth Proportional to 235,801.80, 353,702.70 and 141,323.40

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Solution

The fourth proportional to 235,801.80, 353,702.70 and 141,323.40 is: 211,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,801.80 : 353,702.70 = 141,323.40 : x
  2. Step 2: Convert to fraction form
    235,801.80/353,702.70 = 141,323.40/x
  3. Step 3: Cross multiply
    235,801.80x = 353,702.70 × 141,323.40
  4. Step 4: Simplify right side
    235,801.80x = 49,986,468,153.18
  5. Step 5: Solve for x
    x = 49,986,468,153.18/235,801.80
  6. Step 6: Final answer
    x = 211,985.10

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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.