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Finding the Fourth Proportional to 321,804.60, 482,561.10 and 122,058.60

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Solution

The fourth proportional to 321,804.60, 482,561.10 and 122,058.60 is: 183,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,804.60 : 482,561.10 = 122,058.60 : x
  2. Step 2: Convert to fraction form
    321,804.60/482,561.10 = 122,058.60/x
  3. Step 3: Cross multiply
    321,804.60x = 482,561.10 × 122,058.60
  4. Step 4: Simplify right side
    321,804.60x = 58,900,732,280.46
  5. Step 5: Solve for x
    x = 58,900,732,280.46/321,804.60
  6. Step 6: Final answer
    x = 183,032.60

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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.