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Finding the Fourth Proportional to 169,896.90, 234,463.74 and 93,421.82

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Solution

The fourth proportional to 169,896.90, 234,463.74 and 93,421.82 is: 128,925.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,896.90 : 234,463.74 = 93,421.82 : x
  2. Step 2: Convert to fraction form
    169,896.90/234,463.74 = 93,421.82/x
  3. Step 3: Cross multiply
    169,896.90x = 234,463.74 × 93,421.82
  4. Step 4: Simplify right side
    169,896.90x = 21,904,029,314.81
  5. Step 5: Solve for x
    x = 21,904,029,314.81/169,896.90
  6. Step 6: Final answer
    x = 128,925.42

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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.