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Finding the Fourth Proportional to 335,331.32, 503,076.88 and 98,681.72

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Solution

The fourth proportional to 335,331.32, 503,076.88 and 98,681.72 is: 148,046.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,331.32 : 503,076.88 = 98,681.72 : x
  2. Step 2: Convert to fraction form
    335,331.32/503,076.88 = 98,681.72/x
  3. Step 3: Cross multiply
    335,331.32x = 503,076.88 × 98,681.72
  4. Step 4: Simplify right side
    335,331.32x = 49,644,491,810.63
  5. Step 5: Solve for x
    x = 49,644,491,810.63/335,331.32
  6. Step 6: Final answer
    x = 148,046.09

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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.