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Finding the Fourth Proportional to 64,703.82, 97,188.57 and 42,548.70

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Solution

The fourth proportional to 64,703.82, 97,188.57 and 42,548.70 is: 63,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,703.82 : 97,188.57 = 42,548.70 : x
  2. Step 2: Convert to fraction form
    64,703.82/97,188.57 = 42,548.70/x
  3. Step 3: Cross multiply
    64,703.82x = 97,188.57 × 42,548.70
  4. Step 4: Simplify right side
    64,703.82x = 4,135,247,308.36
  5. Step 5: Solve for x
    x = 4,135,247,308.36/64,703.82
  6. Step 6: Final answer
    x = 63,910.40

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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.