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Finding the Fourth Proportional to 112,009.51, 168,014.26 and 65,229.58

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Solution

The fourth proportional to 112,009.51, 168,014.26 and 65,229.58 is: 97,844.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,009.51 : 168,014.26 = 65,229.58 : x
  2. Step 2: Convert to fraction form
    112,009.51/168,014.26 = 65,229.58/x
  3. Step 3: Cross multiply
    112,009.51x = 168,014.26 × 65,229.58
  4. Step 4: Simplify right side
    112,009.51x = 10,959,499,613.81
  5. Step 5: Solve for x
    x = 10,959,499,613.81/112,009.51
  6. Step 6: Final answer
    x = 97,844.37

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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.