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Finding the Fourth Proportional to 169,647.84, 254,559.20 and 69,881.76

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Solution

The fourth proportional to 169,647.84, 254,559.20 and 69,881.76 is: 104,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,647.84 : 254,559.20 = 69,881.76 : x
  2. Step 2: Convert to fraction form
    169,647.84/254,559.20 = 69,881.76/x
  3. Step 3: Cross multiply
    169,647.84x = 254,559.20 × 69,881.76
  4. Step 4: Simplify right side
    169,647.84x = 17,789,044,920.19
  5. Step 5: Solve for x
    x = 17,789,044,920.19/169,647.84
  6. Step 6: Final answer
    x = 104,858.66

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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.