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Finding the Fourth Proportional to 171,300.06, 256,974.66 and 52,980.57

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Solution

The fourth proportional to 171,300.06, 256,974.66 and 52,980.57 is: 79,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,300.06 : 256,974.66 = 52,980.57 : x
  2. Step 2: Convert to fraction form
    171,300.06/256,974.66 = 52,980.57/x
  3. Step 3: Cross multiply
    171,300.06x = 256,974.66 × 52,980.57
  4. Step 4: Simplify right side
    171,300.06x = 13,614,663,962.36
  5. Step 5: Solve for x
    x = 13,614,663,962.36/171,300.06
  6. Step 6: Final answer
    x = 79,478.45

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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.