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Finding the Fourth Proportional to 186,209.58, 256,974.15 and 101,331.90

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Solution

The fourth proportional to 186,209.58, 256,974.15 and 101,331.90 is: 139,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,209.58 : 256,974.15 = 101,331.90 : x
  2. Step 2: Convert to fraction form
    186,209.58/256,974.15 = 101,331.90/x
  3. Step 3: Cross multiply
    186,209.58x = 256,974.15 × 101,331.90
  4. Step 4: Simplify right side
    186,209.58x = 26,039,678,870.39
  5. Step 5: Solve for x
    x = 26,039,678,870.39/186,209.58
  6. Step 6: Final answer
    x = 139,840.70

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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.