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Finding the Fourth Proportional to 186,451.70, 257,303.25 and 101,568.76

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Solution

The fourth proportional to 186,451.70, 257,303.25 and 101,568.76 is: 140,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,451.70 : 257,303.25 = 101,568.76 : x
  2. Step 2: Convert to fraction form
    186,451.70/257,303.25 = 101,568.76/x
  3. Step 3: Cross multiply
    186,451.70x = 257,303.25 × 101,568.76
  4. Step 4: Simplify right side
    186,451.70x = 26,133,971,403.21
  5. Step 5: Solve for x
    x = 26,133,971,403.21/186,451.70
  6. Step 6: Final answer
    x = 140,164.84

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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.