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Finding the Fourth Proportional to 404,685.98, 606,886.46 and 134,740.81

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Solution

The fourth proportional to 404,685.98, 606,886.46 and 134,740.81 is: 202,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,685.98 : 606,886.46 = 134,740.81 : x
  2. Step 2: Convert to fraction form
    404,685.98/606,886.46 = 134,740.81/x
  3. Step 3: Cross multiply
    404,685.98x = 606,886.46 × 134,740.81
  4. Step 4: Simplify right side
    404,685.98x = 81,772,372,018.07
  5. Step 5: Solve for x
    x = 81,772,372,018.07/404,685.98
  6. Step 6: Final answer
    x = 202,063.77

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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.