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Finding the Fourth Proportional to 582,116.22, 873,120.80 and 155,636.78

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Solution

The fourth proportional to 582,116.22, 873,120.80 and 155,636.78 is: 233,440.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,116.22 : 873,120.80 = 155,636.78 : x
  2. Step 2: Convert to fraction form
    582,116.22/873,120.80 = 155,636.78/x
  3. Step 3: Cross multiply
    582,116.22x = 873,120.80 × 155,636.78
  4. Step 4: Simplify right side
    582,116.22x = 135,889,705,886.51
  5. Step 5: Solve for x
    x = 135,889,705,886.51/582,116.22
  6. Step 6: Final answer
    x = 233,440.85

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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.