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Finding the Fourth Proportional to 130,602.80, 195,904.20 and 41,919.95

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Solution

The fourth proportional to 130,602.80, 195,904.20 and 41,919.95 is: 62,879.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,602.80 : 195,904.20 = 41,919.95 : x
  2. Step 2: Convert to fraction form
    130,602.80/195,904.20 = 41,919.95/x
  3. Step 3: Cross multiply
    130,602.80x = 195,904.20 × 41,919.95
  4. Step 4: Simplify right side
    130,602.80x = 8,212,294,268.79
  5. Step 5: Solve for x
    x = 8,212,294,268.79/130,602.80
  6. Step 6: Final answer
    x = 62,879.93

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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.