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Finding the Fourth Proportional to 491,058.54, 736,603.65 and 136,075.98

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Solution

The fourth proportional to 491,058.54, 736,603.65 and 136,075.98 is: 204,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,058.54 : 736,603.65 = 136,075.98 : x
  2. Step 2: Convert to fraction form
    491,058.54/736,603.65 = 136,075.98/x
  3. Step 3: Cross multiply
    491,058.54x = 736,603.65 × 136,075.98
  4. Step 4: Simplify right side
    491,058.54x = 100,234,063,545.33
  5. Step 5: Solve for x
    x = 100,234,063,545.33/491,058.54
  6. Step 6: Final answer
    x = 204,118.36

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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.