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Finding the Fourth Proportional to 124,791, 187,187.94 and 36,045.48

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Solution

The fourth proportional to 124,791, 187,187.94 and 36,045.48 is: 54,068.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,791 : 187,187.94 = 36,045.48 : x
  2. Step 2: Convert to fraction form
    124,791/187,187.94 = 36,045.48/x
  3. Step 3: Cross multiply
    124,791x = 187,187.94 × 36,045.48
  4. Step 4: Simplify right side
    124,791x = 6,747,279,147.51
  5. Step 5: Solve for x
    x = 6,747,279,147.51/124,791
  6. Step 6: Final answer
    x = 54,068.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.