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Finding the Fourth Proportional to 250,776.66, 346,071.79 and 143,349.04

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Solution

The fourth proportional to 250,776.66, 346,071.79 and 143,349.04 is: 197,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,776.66 : 346,071.79 = 143,349.04 : x
  2. Step 2: Convert to fraction form
    250,776.66/346,071.79 = 143,349.04/x
  3. Step 3: Cross multiply
    250,776.66x = 346,071.79 × 143,349.04
  4. Step 4: Simplify right side
    250,776.66x = 49,609,059,479.36
  5. Step 5: Solve for x
    x = 49,609,059,479.36/250,776.66
  6. Step 6: Final answer
    x = 197,821.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.