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Finding the Fourth Proportional to 250,309.53, 345,460.01 and 142,854.93

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Solution

The fourth proportional to 250,309.53, 345,460.01 and 142,854.93 is: 197,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,309.53 : 345,460.01 = 142,854.93 : x
  2. Step 2: Convert to fraction form
    250,309.53/345,460.01 = 142,854.93/x
  3. Step 3: Cross multiply
    250,309.53x = 345,460.01 × 142,854.93
  4. Step 4: Simplify right side
    250,309.53x = 49,350,664,832.07
  5. Step 5: Solve for x
    x = 49,350,664,832.07/250,309.53
  6. Step 6: Final answer
    x = 197,158.55

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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.