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Finding the Fourth Proportional to 109,641.60, 164,462.40 and 62,402.40

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Solution

The fourth proportional to 109,641.60, 164,462.40 and 62,402.40 is: 93,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,641.60 : 164,462.40 = 62,402.40 : x
  2. Step 2: Convert to fraction form
    109,641.60/164,462.40 = 62,402.40/x
  3. Step 3: Cross multiply
    109,641.60x = 164,462.40 × 62,402.40
  4. Step 4: Simplify right side
    109,641.60x = 10,262,848,469.76
  5. Step 5: Solve for x
    x = 10,262,848,469.76/109,641.60
  6. Step 6: Final answer
    x = 93,603.60

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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.