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Finding the Fourth Proportional to 75,703.84, 113,602.76 and 51,413.56

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Solution

The fourth proportional to 75,703.84, 113,602.76 and 51,413.56 is: 77,152.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,703.84 : 113,602.76 = 51,413.56 : x
  2. Step 2: Convert to fraction form
    75,703.84/113,602.76 = 51,413.56/x
  3. Step 3: Cross multiply
    75,703.84x = 113,602.76 × 51,413.56
  4. Step 4: Simplify right side
    75,703.84x = 5,840,722,317.43
  5. Step 5: Solve for x
    x = 5,840,722,317.43/75,703.84
  6. Step 6: Final answer
    x = 77,152.26

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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.