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Finding the Fourth Proportional to 210,352.78, 315,531.90 and 60,595.54

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Solution

The fourth proportional to 210,352.78, 315,531.90 and 60,595.54 is: 90,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,352.78 : 315,531.90 = 60,595.54 : x
  2. Step 2: Convert to fraction form
    210,352.78/315,531.90 = 60,595.54/x
  3. Step 3: Cross multiply
    210,352.78x = 315,531.90 × 60,595.54
  4. Step 4: Simplify right side
    210,352.78x = 19,119,825,867.73
  5. Step 5: Solve for x
    x = 19,119,825,867.73/210,352.78
  6. Step 6: Final answer
    x = 90,894.10

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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.