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Finding the Fourth Proportional to 65,355.54, 97,990.29 and 43,101.06

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Solution

The fourth proportional to 65,355.54, 97,990.29 and 43,101.06 is: 64,623.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,355.54 : 97,990.29 = 43,101.06 : x
  2. Step 2: Convert to fraction form
    65,355.54/97,990.29 = 43,101.06/x
  3. Step 3: Cross multiply
    65,355.54x = 97,990.29 × 43,101.06
  4. Step 4: Simplify right side
    65,355.54x = 4,223,485,368.71
  5. Step 5: Solve for x
    x = 4,223,485,368.71/65,355.54
  6. Step 6: Final answer
    x = 64,623.22

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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.