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Finding the Fourth Proportional to 243,808.98, 336,320.94 and 141,822.96

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Solution

The fourth proportional to 243,808.98, 336,320.94 and 141,822.96 is: 195,636.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,808.98 : 336,320.94 = 141,822.96 : x
  2. Step 2: Convert to fraction form
    243,808.98/336,320.94 = 141,822.96/x
  3. Step 3: Cross multiply
    243,808.98x = 336,320.94 × 141,822.96
  4. Step 4: Simplify right side
    243,808.98x = 47,698,031,220.78
  5. Step 5: Solve for x
    x = 47,698,031,220.78/243,808.98
  6. Step 6: Final answer
    x = 195,636.89

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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.