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Finding the Fourth Proportional to 169,868.39, 234,412.41 and 93,386.93

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Solution

The fourth proportional to 169,868.39, 234,412.41 and 93,386.93 is: 128,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,868.39 : 234,412.41 = 93,386.93 : x
  2. Step 2: Convert to fraction form
    169,868.39/234,412.41 = 93,386.93/x
  3. Step 3: Cross multiply
    169,868.39x = 234,412.41 × 93,386.93
  4. Step 4: Simplify right side
    169,868.39x = 21,891,054,714.98
  5. Step 5: Solve for x
    x = 21,891,054,714.98/169,868.39
  6. Step 6: Final answer
    x = 128,870.68

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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.