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Finding the Fourth Proportional to 186,171.84, 256,909.50 and 101,288.94

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Solution

The fourth proportional to 186,171.84, 256,909.50 and 101,288.94 is: 139,774.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,171.84 : 256,909.50 = 101,288.94 : x
  2. Step 2: Convert to fraction form
    186,171.84/256,909.50 = 101,288.94/x
  3. Step 3: Cross multiply
    186,171.84x = 256,909.50 × 101,288.94
  4. Step 4: Simplify right side
    186,171.84x = 26,022,090,930.93
  5. Step 5: Solve for x
    x = 26,022,090,930.93/186,171.84
  6. Step 6: Final answer
    x = 139,774.58

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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.