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Finding the Fourth Proportional to 404,813.70, 607,220.55 and 124,330.95

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Solution

The fourth proportional to 404,813.70, 607,220.55 and 124,330.95 is: 186,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,813.70 : 607,220.55 = 124,330.95 : x
  2. Step 2: Convert to fraction form
    404,813.70/607,220.55 = 124,330.95/x
  3. Step 3: Cross multiply
    404,813.70x = 607,220.55 × 124,330.95
  4. Step 4: Simplify right side
    404,813.70x = 75,496,307,841.02
  5. Step 5: Solve for x
    x = 75,496,307,841.02/404,813.70
  6. Step 6: Final answer
    x = 186,496.43

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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.