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Finding the Fourth Proportional to 323,520.51, 485,280.77 and 98,881.59

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Solution

The fourth proportional to 323,520.51, 485,280.77 and 98,881.59 is: 148,322.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,520.51 : 485,280.77 = 98,881.59 : x
  2. Step 2: Convert to fraction form
    323,520.51/485,280.77 = 98,881.59/x
  3. Step 3: Cross multiply
    323,520.51x = 485,280.77 × 98,881.59
  4. Step 4: Simplify right side
    323,520.51x = 47,985,333,639.62
  5. Step 5: Solve for x
    x = 47,985,333,639.62/323,520.51
  6. Step 6: Final answer
    x = 148,322.39

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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.