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Finding the Fourth Proportional to 186,188.40, 256,935.84 and 101,305.68

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Solution

The fourth proportional to 186,188.40, 256,935.84 and 101,305.68 is: 139,799.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,188.40 : 256,935.84 = 101,305.68 : x
  2. Step 2: Convert to fraction form
    186,188.40/256,935.84 = 101,305.68/x
  3. Step 3: Cross multiply
    186,188.40x = 256,935.84 × 101,305.68
  4. Step 4: Simplify right side
    186,188.40x = 26,029,059,987.57
  5. Step 5: Solve for x
    x = 26,029,059,987.57/186,188.40
  6. Step 6: Final answer
    x = 139,799.58

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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.