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Finding the Fourth Proportional to 372,578.51, 558,864.93 and 106,338.80

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Solution

The fourth proportional to 372,578.51, 558,864.93 and 106,338.80 is: 159,507.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,578.51 : 558,864.93 = 106,338.80 : x
  2. Step 2: Convert to fraction form
    372,578.51/558,864.93 = 106,338.80/x
  3. Step 3: Cross multiply
    372,578.51x = 558,864.93 × 106,338.80
  4. Step 4: Simplify right side
    372,578.51x = 59,429,026,018.28
  5. Step 5: Solve for x
    x = 59,429,026,018.28/372,578.51
  6. Step 6: Final answer
    x = 159,507.39

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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.