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Finding the Fourth Proportional to 169,538.49, 255,322.89 and 154,404.77

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Solution

The fourth proportional to 169,538.49, 255,322.89 and 154,404.77 is: 232,531.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,538.49 : 255,322.89 = 154,404.77 : x
  2. Step 2: Convert to fraction form
    169,538.49/255,322.89 = 154,404.77/x
  3. Step 3: Cross multiply
    169,538.49x = 255,322.89 × 154,404.77
  4. Step 4: Simplify right side
    169,538.49x = 39,423,070,829.57
  5. Step 5: Solve for x
    x = 39,423,070,829.57/169,538.49
  6. Step 6: Final answer
    x = 232,531.69

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.