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Finding the Fourth Proportional to 210,083.92, 313,377.66 and 189,905.20

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Solution

The fourth proportional to 210,083.92, 313,377.66 and 189,905.20 is: 283,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,083.92 : 313,377.66 = 189,905.20 : x
  2. Step 2: Convert to fraction form
    210,083.92/313,377.66 = 189,905.20/x
  3. Step 3: Cross multiply
    210,083.92x = 313,377.66 × 189,905.20
  4. Step 4: Simplify right side
    210,083.92x = 59,512,047,197.83
  5. Step 5: Solve for x
    x = 59,512,047,197.83/210,083.92
  6. Step 6: Final answer
    x = 283,277.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.