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Finding the Fourth Proportional to 210,049.47, 314,981.46 and 60,255.77

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Solution

The fourth proportional to 210,049.47, 314,981.46 and 60,255.77 is: 90,357.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,049.47 : 314,981.46 = 60,255.77 : x
  2. Step 2: Convert to fraction form
    210,049.47/314,981.46 = 60,255.77/x
  3. Step 3: Cross multiply
    210,049.47x = 314,981.46 × 60,255.77
  4. Step 4: Simplify right side
    210,049.47x = 18,979,448,833.12
  5. Step 5: Solve for x
    x = 18,979,448,833.12/210,049.47
  6. Step 6: Final answer
    x = 90,357.04

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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.