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Finding the Fourth Proportional to 186,809.87, 257,798.63 and 101,928.76

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Solution

The fourth proportional to 186,809.87, 257,798.63 and 101,928.76 is: 140,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,809.87 : 257,798.63 = 101,928.76 : x
  2. Step 2: Convert to fraction form
    186,809.87/257,798.63 = 101,928.76/x
  3. Step 3: Cross multiply
    186,809.87x = 257,798.63 × 101,928.76
  4. Step 4: Simplify right side
    186,809.87x = 26,277,094,685.60
  5. Step 5: Solve for x
    x = 26,277,094,685.60/186,809.87
  6. Step 6: Final answer
    x = 140,662.24

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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.