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Finding the Fourth Proportional to 556,699.64, 835,042.16 and 135,979.16

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Solution

The fourth proportional to 556,699.64, 835,042.16 and 135,979.16 is: 203,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,699.64 : 835,042.16 = 135,979.16 : x
  2. Step 2: Convert to fraction form
    556,699.64/835,042.16 = 135,979.16/x
  3. Step 3: Cross multiply
    556,699.64x = 835,042.16 × 135,979.16
  4. Step 4: Simplify right side
    556,699.64x = 113,548,327,646.12
  5. Step 5: Solve for x
    x = 113,548,327,646.12/556,699.64
  6. Step 6: Final answer
    x = 203,966.95

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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.