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Finding the Fourth Proportional to 125,278.51, 187,925.15 and 41,047.51

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Solution

The fourth proportional to 125,278.51, 187,925.15 and 41,047.51 is: 61,573.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,278.51 : 187,925.15 = 41,047.51 : x
  2. Step 2: Convert to fraction form
    125,278.51/187,925.15 = 41,047.51/x
  3. Step 3: Cross multiply
    125,278.51x = 187,925.15 × 41,047.51
  4. Step 4: Simplify right side
    125,278.51x = 7,713,859,473.88
  5. Step 5: Solve for x
    x = 7,713,859,473.88/125,278.51
  6. Step 6: Final answer
    x = 61,573.68

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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.