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Finding the Fourth Proportional to 202,940.96, 280,058.86 and 112,300.74

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Solution

The fourth proportional to 202,940.96, 280,058.86 and 112,300.74 is: 154,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,940.96 : 280,058.86 = 112,300.74 : x
  2. Step 2: Convert to fraction form
    202,940.96/280,058.86 = 112,300.74/x
  3. Step 3: Cross multiply
    202,940.96x = 280,058.86 × 112,300.74
  4. Step 4: Simplify right side
    202,940.96x = 31,450,817,221.56
  5. Step 5: Solve for x
    x = 31,450,817,221.56/202,940.96
  6. Step 6: Final answer
    x = 154,975.21

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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.