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Finding the Fourth Proportional to 327,368.98, 491,052.12 and 90,710.98

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Solution

The fourth proportional to 327,368.98, 491,052.12 and 90,710.98 is: 136,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,368.98 : 491,052.12 = 90,710.98 : x
  2. Step 2: Convert to fraction form
    327,368.98/491,052.12 = 90,710.98/x
  3. Step 3: Cross multiply
    327,368.98x = 491,052.12 × 90,710.98
  4. Step 4: Simplify right side
    327,368.98x = 44,543,819,036.28
  5. Step 5: Solve for x
    x = 44,543,819,036.28/327,368.98
  6. Step 6: Final answer
    x = 136,066.10

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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.