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Finding the Fourth Proportional to 219,404.90, 329,107.35 and 53,192.90

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Solution

The fourth proportional to 219,404.90, 329,107.35 and 53,192.90 is: 79,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,404.90 : 329,107.35 = 53,192.90 : x
  2. Step 2: Convert to fraction form
    219,404.90/329,107.35 = 53,192.90/x
  3. Step 3: Cross multiply
    219,404.90x = 329,107.35 × 53,192.90
  4. Step 4: Simplify right side
    219,404.90x = 17,506,174,357.82
  5. Step 5: Solve for x
    x = 17,506,174,357.82/219,404.90
  6. Step 6: Final answer
    x = 79,789.35

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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.