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Finding the Fourth Proportional to 65,371.60, 97,911.60 and 56,623.60

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Solution

The fourth proportional to 65,371.60, 97,911.60 and 56,623.60 is: 84,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,371.60 : 97,911.60 = 56,623.60 : x
  2. Step 2: Convert to fraction form
    65,371.60/97,911.60 = 56,623.60/x
  3. Step 3: Cross multiply
    65,371.60x = 97,911.60 × 56,623.60
  4. Step 4: Simplify right side
    65,371.60x = 5,544,107,273.76
  5. Step 5: Solve for x
    x = 5,544,107,273.76/65,371.60
  6. Step 6: Final answer
    x = 84,809.11

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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.