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Finding the Fourth Proportional to 186,189.42, 256,946.88 and 101,311.98

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Solution

The fourth proportional to 186,189.42, 256,946.88 and 101,311.98 is: 139,813.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,189.42 : 256,946.88 = 101,311.98 : x
  2. Step 2: Convert to fraction form
    186,189.42/256,946.88 = 101,311.98/x
  3. Step 3: Cross multiply
    186,189.42x = 256,946.88 × 101,311.98
  4. Step 4: Simplify right side
    186,189.42x = 26,031,797,167.62
  5. Step 5: Solve for x
    x = 26,031,797,167.62/186,189.42
  6. Step 6: Final answer
    x = 139,813.51

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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.