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Finding the Fourth Proportional to 604,385.16, 906,610.08 and 155,109.90

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Solution

The fourth proportional to 604,385.16, 906,610.08 and 155,109.90 is: 232,673.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,385.16 : 906,610.08 = 155,109.90 : x
  2. Step 2: Convert to fraction form
    604,385.16/906,610.08 = 155,109.90/x
  3. Step 3: Cross multiply
    604,385.16x = 906,610.08 × 155,109.90
  4. Step 4: Simplify right side
    604,385.16x = 140,624,198,847.79
  5. Step 5: Solve for x
    x = 140,624,198,847.79/604,385.16
  6. Step 6: Final answer
    x = 232,673.15

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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.