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Finding the Fourth Proportional to 201,423.16, 277,958.10 and 110,778.76

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Solution

The fourth proportional to 201,423.16, 277,958.10 and 110,778.76 is: 152,871.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,423.16 : 277,958.10 = 110,778.76 : x
  2. Step 2: Convert to fraction form
    201,423.16/277,958.10 = 110,778.76/x
  3. Step 3: Cross multiply
    201,423.16x = 277,958.10 × 110,778.76
  4. Step 4: Simplify right side
    201,423.16x = 30,791,853,649.96
  5. Step 5: Solve for x
    x = 30,791,853,649.96/201,423.16
  6. Step 6: Final answer
    x = 152,871.47

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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.