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Finding the Fourth Proportional to 404,521.80, 606,356.15 and 134,577.83

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Solution

The fourth proportional to 404,521.80, 606,356.15 and 134,577.83 is: 201,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,521.80 : 606,356.15 = 134,577.83 : x
  2. Step 2: Convert to fraction form
    404,521.80/606,356.15 = 134,577.83/x
  3. Step 3: Cross multiply
    404,521.80x = 606,356.15 × 134,577.83
  4. Step 4: Simplify right side
    404,521.80x = 81,602,095,717.16
  5. Step 5: Solve for x
    x = 81,602,095,717.16/404,521.80
  6. Step 6: Final answer
    x = 201,724.84

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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.