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Finding the Fourth Proportional to 186,659.64, 257,589.72 and 101,776.50

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Solution

The fourth proportional to 186,659.64, 257,589.72 and 101,776.50 is: 140,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,659.64 : 257,589.72 = 101,776.50 : x
  2. Step 2: Convert to fraction form
    186,659.64/257,589.72 = 101,776.50/x
  3. Step 3: Cross multiply
    186,659.64x = 257,589.72 × 101,776.50
  4. Step 4: Simplify right side
    186,659.64x = 26,216,580,137.58
  5. Step 5: Solve for x
    x = 26,216,580,137.58/186,659.64
  6. Step 6: Final answer
    x = 140,451.25

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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.