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Finding the Fourth Proportional to 326,066.65, 488,678.97 and 146,020.52

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Solution

The fourth proportional to 326,066.65, 488,678.97 and 146,020.52 is: 218,842.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,066.65 : 488,678.97 = 146,020.52 : x
  2. Step 2: Convert to fraction form
    326,066.65/488,678.97 = 146,020.52/x
  3. Step 3: Cross multiply
    326,066.65x = 488,678.97 × 146,020.52
  4. Step 4: Simplify right side
    326,066.65x = 71,357,159,081.74
  5. Step 5: Solve for x
    x = 71,357,159,081.74/326,066.65
  6. Step 6: Final answer
    x = 218,842.25

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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.