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Finding the Fourth Proportional to 169,478.68, 254,040.60 and 57,120.02

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Solution

The fourth proportional to 169,478.68, 254,040.60 and 57,120.02 is: 85,620.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,478.68 : 254,040.60 = 57,120.02 : x
  2. Step 2: Convert to fraction form
    169,478.68/254,040.60 = 57,120.02/x
  3. Step 3: Cross multiply
    169,478.68x = 254,040.60 × 57,120.02
  4. Step 4: Simplify right side
    169,478.68x = 14,510,804,152.81
  5. Step 5: Solve for x
    x = 14,510,804,152.81/169,478.68
  6. Step 6: Final answer
    x = 85,620.23

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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.