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Finding the Fourth Proportional to 186,106.70, 256,814.61 and 101,221.94

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Solution

The fourth proportional to 186,106.70, 256,814.61 and 101,221.94 is: 139,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,106.70 : 256,814.61 = 101,221.94 : x
  2. Step 2: Convert to fraction form
    186,106.70/256,814.61 = 101,221.94/x
  3. Step 3: Cross multiply
    186,106.70x = 256,814.61 × 101,221.94
  4. Step 4: Simplify right side
    186,106.70x = 25,995,273,044.54
  5. Step 5: Solve for x
    x = 25,995,273,044.54/186,106.70
  6. Step 6: Final answer
    x = 139,679.40

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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.