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Finding the Fourth Proportional to 321,686.03, 482,372.72 and 97,004.59

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Solution

The fourth proportional to 321,686.03, 482,372.72 and 97,004.59 is: 145,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,686.03 : 482,372.72 = 97,004.59 : x
  2. Step 2: Convert to fraction form
    321,686.03/482,372.72 = 97,004.59/x
  3. Step 3: Cross multiply
    321,686.03x = 482,372.72 × 97,004.59
  4. Step 4: Simplify right side
    321,686.03x = 46,792,366,603.60
  5. Step 5: Solve for x
    x = 46,792,366,603.60/321,686.03
  6. Step 6: Final answer
    x = 145,459.74

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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.