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Finding the Fourth Proportional to 64,099.76, 88,455.80 and 35,418.96

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Solution

The fourth proportional to 64,099.76, 88,455.80 and 35,418.96 is: 48,877.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,099.76 : 88,455.80 = 35,418.96 : x
  2. Step 2: Convert to fraction form
    64,099.76/88,455.80 = 35,418.96/x
  3. Step 3: Cross multiply
    64,099.76x = 88,455.80 × 35,418.96
  4. Step 4: Simplify right side
    64,099.76x = 3,133,012,397.69
  5. Step 5: Solve for x
    x = 3,133,012,397.69/64,099.76
  6. Step 6: Final answer
    x = 48,877.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.