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Finding the Fourth Proportional to 352,114.98, 528,039.82 and 127,419.85

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Solution

The fourth proportional to 352,114.98, 528,039.82 and 127,419.85 is: 191,081.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,114.98 : 528,039.82 = 127,419.85 : x
  2. Step 2: Convert to fraction form
    352,114.98/528,039.82 = 127,419.85/x
  3. Step 3: Cross multiply
    352,114.98x = 528,039.82 × 127,419.85
  4. Step 4: Simplify right side
    352,114.98x = 67,282,754,658.43
  5. Step 5: Solve for x
    x = 67,282,754,658.43/352,114.98
  6. Step 6: Final answer
    x = 191,081.77

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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.