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Finding the Fourth Proportional to 335,125.89, 502,725.78 and 98,487

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Solution

The fourth proportional to 335,125.89, 502,725.78 and 98,487 is: 147,741.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,125.89 : 502,725.78 = 98,487 : x
  2. Step 2: Convert to fraction form
    335,125.89/502,725.78 = 98,487/x
  3. Step 3: Cross multiply
    335,125.89x = 502,725.78 × 98,487
  4. Step 4: Simplify right side
    335,125.89x = 49,511,953,894.86
  5. Step 5: Solve for x
    x = 49,511,953,894.86/335,125.89
  6. Step 6: Final answer
    x = 147,741.36

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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.