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Finding the Fourth Proportional to 165,275.51, 228,079.40 and 89,824.01

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Solution

The fourth proportional to 165,275.51, 228,079.40 and 89,824.01 is: 123,956.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,275.51 : 228,079.40 = 89,824.01 : x
  2. Step 2: Convert to fraction form
    165,275.51/228,079.40 = 89,824.01/x
  3. Step 3: Cross multiply
    165,275.51x = 228,079.40 × 89,824.01
  4. Step 4: Simplify right side
    165,275.51x = 20,487,004,716.88
  5. Step 5: Solve for x
    x = 20,487,004,716.88/165,275.51
  6. Step 6: Final answer
    x = 123,956.69

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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.