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Finding the Fourth Proportional to 122,647.60, 183,971.40 and 63,501.40

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Solution

The fourth proportional to 122,647.60, 183,971.40 and 63,501.40 is: 95,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,647.60 : 183,971.40 = 63,501.40 : x
  2. Step 2: Convert to fraction form
    122,647.60/183,971.40 = 63,501.40/x
  3. Step 3: Cross multiply
    122,647.60x = 183,971.40 × 63,501.40
  4. Step 4: Simplify right side
    122,647.60x = 11,682,441,459.96
  5. Step 5: Solve for x
    x = 11,682,441,459.96/122,647.60
  6. Step 6: Final answer
    x = 95,252.10

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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.