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Finding the Fourth Proportional to 242,962.72, 335,296.88 and 140,980.48

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Solution

The fourth proportional to 242,962.72, 335,296.88 and 140,980.48 is: 194,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,962.72 : 335,296.88 = 140,980.48 : x
  2. Step 2: Convert to fraction form
    242,962.72/335,296.88 = 140,980.48/x
  3. Step 3: Cross multiply
    242,962.72x = 335,296.88 × 140,980.48
  4. Step 4: Simplify right side
    242,962.72x = 47,270,315,084.90
  5. Step 5: Solve for x
    x = 47,270,315,084.90/242,962.72
  6. Step 6: Final answer
    x = 194,557.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.