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Finding the Fourth Proportional to 274,596.99, 378,925.89 and 153,737.16

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Solution

The fourth proportional to 274,596.99, 378,925.89 and 153,737.16 is: 212,147.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,596.99 : 378,925.89 = 153,737.16 : x
  2. Step 2: Convert to fraction form
    274,596.99/378,925.89 = 153,737.16/x
  3. Step 3: Cross multiply
    274,596.99x = 378,925.89 × 153,737.16
  4. Step 4: Simplify right side
    274,596.99x = 58,254,990,179.07
  5. Step 5: Solve for x
    x = 58,254,990,179.07/274,596.99
  6. Step 6: Final answer
    x = 212,147.23

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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.