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Finding the Fourth Proportional to 250,776.68, 346,071.79 and 143,349.01

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Solution

The fourth proportional to 250,776.68, 346,071.79 and 143,349.01 is: 197,821.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,776.68 : 346,071.79 = 143,349.01 : x
  2. Step 2: Convert to fraction form
    250,776.68/346,071.79 = 143,349.01/x
  3. Step 3: Cross multiply
    250,776.68x = 346,071.79 × 143,349.01
  4. Step 4: Simplify right side
    250,776.68x = 49,609,047,799.43
  5. Step 5: Solve for x
    x = 49,609,047,799.43/250,776.68
  6. Step 6: Final answer
    x = 197,821.62

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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.