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Finding the Fourth Proportional to 285,357.48, 428,054.66 and 95,810.19

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Solution

The fourth proportional to 285,357.48, 428,054.66 and 95,810.19 is: 143,721.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,357.48 : 428,054.66 = 95,810.19 : x
  2. Step 2: Convert to fraction form
    285,357.48/428,054.66 = 95,810.19/x
  3. Step 3: Cross multiply
    285,357.48x = 428,054.66 × 95,810.19
  4. Step 4: Simplify right side
    285,357.48x = 41,011,998,304.99
  5. Step 5: Solve for x
    x = 41,011,998,304.99/285,357.48
  6. Step 6: Final answer
    x = 143,721.48

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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.