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Finding the Fourth Proportional to 73,666.21, 101,671.70 and 43,459.03

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Solution

The fourth proportional to 73,666.21, 101,671.70 and 43,459.03 is: 59,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,666.21 : 101,671.70 = 43,459.03 : x
  2. Step 2: Convert to fraction form
    73,666.21/101,671.70 = 43,459.03/x
  3. Step 3: Cross multiply
    73,666.21x = 101,671.70 × 43,459.03
  4. Step 4: Simplify right side
    73,666.21x = 4,418,553,460.45
  5. Step 5: Solve for x
    x = 4,418,553,460.45/73,666.21
  6. Step 6: Final answer
    x = 59,980.74

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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.