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Finding the Fourth Proportional to 73,852.64, 101,916.96 and 40,319.36

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Solution

The fourth proportional to 73,852.64, 101,916.96 and 40,319.36 is: 55,640.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,852.64 : 101,916.96 = 40,319.36 : x
  2. Step 2: Convert to fraction form
    73,852.64/101,916.96 = 40,319.36/x
  3. Step 3: Cross multiply
    73,852.64x = 101,916.96 × 40,319.36
  4. Step 4: Simplify right side
    73,852.64x = 4,109,226,600.35
  5. Step 5: Solve for x
    x = 4,109,226,600.35/73,852.64
  6. Step 6: Final answer
    x = 55,640.89

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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.