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Finding the Fourth Proportional to 130,465.60, 195,698.40 and 108,323.20

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Solution

The fourth proportional to 130,465.60, 195,698.40 and 108,323.20 is: 162,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,465.60 : 195,698.40 = 108,323.20 : x
  2. Step 2: Convert to fraction form
    130,465.60/195,698.40 = 108,323.20/x
  3. Step 3: Cross multiply
    130,465.60x = 195,698.40 × 108,323.20
  4. Step 4: Simplify right side
    130,465.60x = 21,198,676,922.88
  5. Step 5: Solve for x
    x = 21,198,676,922.88/130,465.60
  6. Step 6: Final answer
    x = 162,484.80

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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.