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Finding the Fourth Proportional to 130,479.51, 195,793.02 and 55,591.77

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Solution

The fourth proportional to 130,479.51, 195,793.02 and 55,591.77 is: 83,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,479.51 : 195,793.02 = 55,591.77 : x
  2. Step 2: Convert to fraction form
    130,479.51/195,793.02 = 55,591.77/x
  3. Step 3: Cross multiply
    130,479.51x = 195,793.02 × 55,591.77
  4. Step 4: Simplify right side
    130,479.51x = 10,884,480,535.45
  5. Step 5: Solve for x
    x = 10,884,480,535.45/130,479.51
  6. Step 6: Final answer
    x = 83,419.08

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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.