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Finding the Fourth Proportional to 371,703.06, 557,356.92 and 147,054.42

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Solution

The fourth proportional to 371,703.06, 557,356.92 and 147,054.42 is: 220,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,703.06 : 557,356.92 = 147,054.42 : x
  2. Step 2: Convert to fraction form
    371,703.06/557,356.92 = 147,054.42/x
  3. Step 3: Cross multiply
    371,703.06x = 557,356.92 × 147,054.42
  4. Step 4: Simplify right side
    371,703.06x = 81,961,798,603.59
  5. Step 5: Solve for x
    x = 81,961,798,603.59/371,703.06
  6. Step 6: Final answer
    x = 220,503.43

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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.