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Finding the Fourth Proportional to 169,775.51, 254,662.99 and 45,116.51

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Solution

The fourth proportional to 169,775.51, 254,662.99 and 45,116.51 is: 67,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,775.51 : 254,662.99 = 45,116.51 : x
  2. Step 2: Convert to fraction form
    169,775.51/254,662.99 = 45,116.51/x
  3. Step 3: Cross multiply
    169,775.51x = 254,662.99 × 45,116.51
  4. Step 4: Simplify right side
    169,775.51x = 11,489,503,948.86
  5. Step 5: Solve for x
    x = 11,489,503,948.86/169,775.51
  6. Step 6: Final answer
    x = 67,674.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.