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Finding the Fourth Proportional to 181,870.84, 250,781.16 and 124,519.60

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Solution

The fourth proportional to 181,870.84, 250,781.16 and 124,519.60 is: 171,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,870.84 : 250,781.16 = 124,519.60 : x
  2. Step 2: Convert to fraction form
    181,870.84/250,781.16 = 124,519.60/x
  3. Step 3: Cross multiply
    181,870.84x = 250,781.16 × 124,519.60
  4. Step 4: Simplify right side
    181,870.84x = 31,227,169,730.74
  5. Step 5: Solve for x
    x = 31,227,169,730.74/181,870.84
  6. Step 6: Final answer
    x = 171,699.71

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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.