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Finding the Fourth Proportional to 73,703.01, 101,703.72 and 40,991.16

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Solution

The fourth proportional to 73,703.01, 101,703.72 and 40,991.16 is: 56,564.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,703.01 : 101,703.72 = 40,991.16 : x
  2. Step 2: Convert to fraction form
    73,703.01/101,703.72 = 40,991.16/x
  3. Step 3: Cross multiply
    73,703.01x = 101,703.72 × 40,991.16
  4. Step 4: Simplify right side
    73,703.01x = 4,168,953,459.12
  5. Step 5: Solve for x
    x = 4,168,953,459.12/73,703.01
  6. Step 6: Final answer
    x = 56,564.22

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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.