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Finding the Fourth Proportional to 202,234.50, 279,083.61 and 112,810.50

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Solution

The fourth proportional to 202,234.50, 279,083.61 and 112,810.50 is: 155,678.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,234.50 : 279,083.61 = 112,810.50 : x
  2. Step 2: Convert to fraction form
    202,234.50/279,083.61 = 112,810.50/x
  3. Step 3: Cross multiply
    202,234.50x = 279,083.61 × 112,810.50
  4. Step 4: Simplify right side
    202,234.50x = 31,483,561,585.91
  5. Step 5: Solve for x
    x = 31,483,561,585.91/202,234.50
  6. Step 6: Final answer
    x = 155,678.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.