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Finding the Fourth Proportional to 132,603.93, 182,993.31 and 72,174.51

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Solution

The fourth proportional to 132,603.93, 182,993.31 and 72,174.51 is: 99,600.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,603.93 : 182,993.31 = 72,174.51 : x
  2. Step 2: Convert to fraction form
    132,603.93/182,993.31 = 72,174.51/x
  3. Step 3: Cross multiply
    132,603.93x = 182,993.31 × 72,174.51
  4. Step 4: Simplify right side
    132,603.93x = 13,207,452,482.53
  5. Step 5: Solve for x
    x = 13,207,452,482.53/132,603.93
  6. Step 6: Final answer
    x = 99,600.76

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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.