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Finding the Fourth Proportional to 321,207.60, 481,811.40 and 96,602.70

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Solution

The fourth proportional to 321,207.60, 481,811.40 and 96,602.70 is: 144,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,207.60 : 481,811.40 = 96,602.70 : x
  2. Step 2: Convert to fraction form
    321,207.60/481,811.40 = 96,602.70/x
  3. Step 3: Cross multiply
    321,207.60x = 481,811.40 × 96,602.70
  4. Step 4: Simplify right side
    321,207.60x = 46,544,282,130.78
  5. Step 5: Solve for x
    x = 46,544,282,130.78/321,207.60
  6. Step 6: Final answer
    x = 144,904.05

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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.