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Finding the Fourth Proportional to 64,982.60, 97,473.90 and 53,707.40

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Solution

The fourth proportional to 64,982.60, 97,473.90 and 53,707.40 is: 80,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,982.60 : 97,473.90 = 53,707.40 : x
  2. Step 2: Convert to fraction form
    64,982.60/97,473.90 = 53,707.40/x
  3. Step 3: Cross multiply
    64,982.60x = 97,473.90 × 53,707.40
  4. Step 4: Simplify right side
    64,982.60x = 5,235,069,736.86
  5. Step 5: Solve for x
    x = 5,235,069,736.86/64,982.60
  6. Step 6: Final answer
    x = 80,561.10

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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.