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Finding the Fourth Proportional to 243,344.98, 364,988.72 and 74,864.98

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Solution

The fourth proportional to 243,344.98, 364,988.72 and 74,864.98 is: 112,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,344.98 : 364,988.72 = 74,864.98 : x
  2. Step 2: Convert to fraction form
    243,344.98/364,988.72 = 74,864.98/x
  3. Step 3: Cross multiply
    243,344.98x = 364,988.72 × 74,864.98
  4. Step 4: Simplify right side
    243,344.98x = 27,324,872,848.70
  5. Step 5: Solve for x
    x = 27,324,872,848.70/243,344.98
  6. Step 6: Final answer
    x = 112,288.62

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1.5x scale

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.