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Finding the Fourth Proportional to 210,549.74, 315,730.76 and 60,754.44

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Solution

The fourth proportional to 210,549.74, 315,730.76 and 60,754.44 is: 91,104.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,549.74 : 315,730.76 = 60,754.44 : x
  2. Step 2: Convert to fraction form
    210,549.74/315,730.76 = 60,754.44/x
  3. Step 3: Cross multiply
    210,549.74x = 315,730.76 × 60,754.44
  4. Step 4: Simplify right side
    210,549.74x = 19,182,045,210.80
  5. Step 5: Solve for x
    x = 19,182,045,210.80/210,549.74
  6. Step 6: Final answer
    x = 91,104.58

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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.