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Finding the Fourth Proportional to 64,937.70, 97,406.55 and 57,501.90

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Solution

The fourth proportional to 64,937.70, 97,406.55 and 57,501.90 is: 86,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,937.70 : 97,406.55 = 57,501.90 : x
  2. Step 2: Convert to fraction form
    64,937.70/97,406.55 = 57,501.90/x
  3. Step 3: Cross multiply
    64,937.70x = 97,406.55 × 57,501.90
  4. Step 4: Simplify right side
    64,937.70x = 5,601,061,697.45
  5. Step 5: Solve for x
    x = 5,601,061,697.45/64,937.70
  6. Step 6: Final answer
    x = 86,252.85

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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.