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Finding the Fourth Proportional to 250,088.49, 345,089.93 and 142,652.12

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Solution

The fourth proportional to 250,088.49, 345,089.93 and 142,652.12 is: 196,841.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,088.49 : 345,089.93 = 142,652.12 : x
  2. Step 2: Convert to fraction form
    250,088.49/345,089.93 = 142,652.12/x
  3. Step 3: Cross multiply
    250,088.49x = 345,089.93 × 142,652.12
  4. Step 4: Simplify right side
    250,088.49x = 49,227,807,666.44
  5. Step 5: Solve for x
    x = 49,227,807,666.44/250,088.49
  6. Step 6: Final answer
    x = 196,841.56

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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.