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Finding the Fourth Proportional to 404,694.47, 606,899.16 and 134,749.32

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Solution

The fourth proportional to 404,694.47, 606,899.16 and 134,749.32 is: 202,076.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,694.47 : 606,899.16 = 134,749.32 : x
  2. Step 2: Convert to fraction form
    404,694.47/606,899.16 = 134,749.32/x
  3. Step 3: Cross multiply
    404,694.47x = 606,899.16 × 134,749.32
  4. Step 4: Simplify right side
    404,694.47x = 81,779,249,118.57
  5. Step 5: Solve for x
    x = 81,779,249,118.57/404,694.47
  6. Step 6: Final answer
    x = 202,076.52

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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.