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Finding the Fourth Proportional to 335,381.85, 502,899.66 and 98,693.82

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Solution

The fourth proportional to 335,381.85, 502,899.66 and 98,693.82 is: 147,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,381.85 : 502,899.66 = 98,693.82 : x
  2. Step 2: Convert to fraction form
    335,381.85/502,899.66 = 98,693.82/x
  3. Step 3: Cross multiply
    335,381.85x = 502,899.66 × 98,693.82
  4. Step 4: Simplify right side
    335,381.85x = 49,633,088,522.10
  5. Step 5: Solve for x
    x = 49,633,088,522.10/335,381.85
  6. Step 6: Final answer
    x = 147,989.79

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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.