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Finding the Fourth Proportional to 425,278.68, 637,801.38 and 158,950.68

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Solution

The fourth proportional to 425,278.68, 637,801.38 and 158,950.68 is: 238,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,278.68 : 637,801.38 = 158,950.68 : x
  2. Step 2: Convert to fraction form
    425,278.68/637,801.38 = 158,950.68/x
  3. Step 3: Cross multiply
    425,278.68x = 637,801.38 × 158,950.68
  4. Step 4: Simplify right side
    425,278.68x = 101,378,963,055.94
  5. Step 5: Solve for x
    x = 101,378,963,055.94/425,278.68
  6. Step 6: Final answer
    x = 238,382.43

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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.