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Finding the Fourth Proportional to 75,303.68, 103,918.10 and 43,037.94

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Solution

The fourth proportional to 75,303.68, 103,918.10 and 43,037.94 is: 59,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,303.68 : 103,918.10 = 43,037.94 : x
  2. Step 2: Convert to fraction form
    75,303.68/103,918.10 = 43,037.94/x
  3. Step 3: Cross multiply
    75,303.68x = 103,918.10 × 43,037.94
  4. Step 4: Simplify right side
    75,303.68x = 4,472,420,952.71
  5. Step 5: Solve for x
    x = 4,472,420,952.71/75,303.68
  6. Step 6: Final answer
    x = 59,391.80

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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.