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Finding the Fourth Proportional to 186,105.70, 256,813.23 and 101,220.94

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Solution

The fourth proportional to 186,105.70, 256,813.23 and 101,220.94 is: 139,678.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,105.70 : 256,813.23 = 101,220.94 : x
  2. Step 2: Convert to fraction form
    186,105.70/256,813.23 = 101,220.94/x
  3. Step 3: Cross multiply
    186,105.70x = 256,813.23 × 101,220.94
  4. Step 4: Simplify right side
    186,105.70x = 25,994,876,545.04
  5. Step 5: Solve for x
    x = 25,994,876,545.04/186,105.70
  6. Step 6: Final answer
    x = 139,678.02

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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.