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Finding the Fourth Proportional to 203,595.55, 280,963.55 and 112,957.46

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Solution

The fourth proportional to 203,595.55, 280,963.55 and 112,957.46 is: 155,882.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,595.55 : 280,963.55 = 112,957.46 : x
  2. Step 2: Convert to fraction form
    203,595.55/280,963.55 = 112,957.46/x
  3. Step 3: Cross multiply
    203,595.55x = 280,963.55 × 112,957.46
  4. Step 4: Simplify right side
    203,595.55x = 31,736,928,960.58
  5. Step 5: Solve for x
    x = 31,736,928,960.58/203,595.55
  6. Step 6: Final answer
    x = 155,882.23

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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.