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Finding the Fourth Proportional to 78,614.34, 108,485.64 and 44,626.08

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Solution

The fourth proportional to 78,614.34, 108,485.64 and 44,626.08 is: 61,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,614.34 : 108,485.64 = 44,626.08 : x
  2. Step 2: Convert to fraction form
    78,614.34/108,485.64 = 44,626.08/x
  3. Step 3: Cross multiply
    78,614.34x = 108,485.64 × 44,626.08
  4. Step 4: Simplify right side
    78,614.34x = 4,841,288,849.49
  5. Step 5: Solve for x
    x = 4,841,288,849.49/78,614.34
  6. Step 6: Final answer
    x = 61,582.77

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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.