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Finding the Fourth Proportional to 148,590.62, 205,069.20 and 84,916.07

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Solution

The fourth proportional to 148,590.62, 205,069.20 and 84,916.07 is: 117,192.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,590.62 : 205,069.20 = 84,916.07 : x
  2. Step 2: Convert to fraction form
    148,590.62/205,069.20 = 84,916.07/x
  3. Step 3: Cross multiply
    148,590.62x = 205,069.20 × 84,916.07
  4. Step 4: Simplify right side
    148,590.62x = 17,413,670,542.04
  5. Step 5: Solve for x
    x = 17,413,670,542.04/148,590.62
  6. Step 6: Final answer
    x = 117,192.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.