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Finding the Fourth Proportional to 371,904.84, 557,852.40 and 91,424.52

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Solution

The fourth proportional to 371,904.84, 557,852.40 and 91,424.52 is: 137,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,904.84 : 557,852.40 = 91,424.52 : x
  2. Step 2: Convert to fraction form
    371,904.84/557,852.40 = 91,424.52/x
  3. Step 3: Cross multiply
    371,904.84x = 557,852.40 × 91,424.52
  4. Step 4: Simplify right side
    371,904.84x = 51,001,387,900.85
  5. Step 5: Solve for x
    x = 51,001,387,900.85/371,904.84
  6. Step 6: Final answer
    x = 137,135.59

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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.