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Finding the Fourth Proportional to 556,981.89, 835,489.03 and 136,257.63

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Solution

The fourth proportional to 556,981.89, 835,489.03 and 136,257.63 is: 204,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,981.89 : 835,489.03 = 136,257.63 : x
  2. Step 2: Convert to fraction form
    556,981.89/835,489.03 = 136,257.63/x
  3. Step 3: Cross multiply
    556,981.89x = 835,489.03 × 136,257.63
  4. Step 4: Simplify right side
    556,981.89x = 113,841,750,941.35
  5. Step 5: Solve for x
    x = 113,841,750,941.35/556,981.89
  6. Step 6: Final answer
    x = 204,390.40

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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.