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Finding the Fourth Proportional to 404,782.92, 607,031.76 and 134,837.88

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Solution

The fourth proportional to 404,782.92, 607,031.76 and 134,837.88 is: 202,209.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,782.92 : 607,031.76 = 134,837.88 : x
  2. Step 2: Convert to fraction form
    404,782.92/607,031.76 = 134,837.88/x
  3. Step 3: Cross multiply
    404,782.92x = 607,031.76 × 134,837.88
  4. Step 4: Simplify right side
    404,782.92x = 81,850,875,611.07
  5. Step 5: Solve for x
    x = 81,850,875,611.07/404,782.92
  6. Step 6: Final answer
    x = 202,209.31

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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.