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Finding the Fourth Proportional to 125,991.51, 173,870.37 and 69,402.93

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Solution

The fourth proportional to 125,991.51, 173,870.37 and 69,402.93 is: 95,777.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,991.51 : 173,870.37 = 69,402.93 : x
  2. Step 2: Convert to fraction form
    125,991.51/173,870.37 = 69,402.93/x
  3. Step 3: Cross multiply
    125,991.51x = 173,870.37 × 69,402.93
  4. Step 4: Simplify right side
    125,991.51x = 12,067,113,118.18
  5. Step 5: Solve for x
    x = 12,067,113,118.18/125,991.51
  6. Step 6: Final answer
    x = 95,777.19

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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.