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Finding the Fourth Proportional to 186,172.84, 256,910.88 and 101,289.94

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Solution

The fourth proportional to 186,172.84, 256,910.88 and 101,289.94 is: 139,775.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,172.84 : 256,910.88 = 101,289.94 : x
  2. Step 2: Convert to fraction form
    186,172.84/256,910.88 = 101,289.94/x
  3. Step 3: Cross multiply
    186,172.84x = 256,910.88 × 101,289.94
  4. Step 4: Simplify right side
    186,172.84x = 26,022,487,620.55
  5. Step 5: Solve for x
    x = 26,022,487,620.55/186,172.84
  6. Step 6: Final answer
    x = 139,775.96

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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.