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Finding the Fourth Proportional to 219,769.65, 329,654.48 and 144,925.65

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Solution

The fourth proportional to 219,769.65, 329,654.48 and 144,925.65 is: 217,388.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,769.65 : 329,654.48 = 144,925.65 : x
  2. Step 2: Convert to fraction form
    219,769.65/329,654.48 = 144,925.65/x
  3. Step 3: Cross multiply
    219,769.65x = 329,654.48 × 144,925.65
  4. Step 4: Simplify right side
    219,769.65x = 47,775,389,064.78
  5. Step 5: Solve for x
    x = 47,775,389,064.78/219,769.65
  6. Step 6: Final answer
    x = 217,388.48

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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.