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Finding the Fourth Proportional to 556,937.20, 835,405.80 and 136,207.60

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Solution

The fourth proportional to 556,937.20, 835,405.80 and 136,207.60 is: 204,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,937.20 : 835,405.80 = 136,207.60 : x
  2. Step 2: Convert to fraction form
    556,937.20/835,405.80 = 136,207.60/x
  3. Step 3: Cross multiply
    556,937.20x = 835,405.80 × 136,207.60
  4. Step 4: Simplify right side
    556,937.20x = 113,788,619,044.08
  5. Step 5: Solve for x
    x = 113,788,619,044.08/556,937.20
  6. Step 6: Final answer
    x = 204,311.40

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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.