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Finding the Fourth Proportional to 219,388.76, 329,083.14 and 53,176.76

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Solution

The fourth proportional to 219,388.76, 329,083.14 and 53,176.76 is: 79,765.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,388.76 : 329,083.14 = 53,176.76 : x
  2. Step 2: Convert to fraction form
    219,388.76/329,083.14 = 53,176.76/x
  3. Step 3: Cross multiply
    219,388.76x = 329,083.14 × 53,176.76
  4. Step 4: Simplify right side
    219,388.76x = 17,499,575,155.83
  5. Step 5: Solve for x
    x = 17,499,575,155.83/219,388.76
  6. Step 6: Final answer
    x = 79,765.14

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1.5x scale

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.