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Finding the Fourth Proportional to 109,950.81, 151,732.40 and 59,649.81

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Solution

The fourth proportional to 109,950.81, 151,732.40 and 59,649.81 is: 82,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,950.81 : 151,732.40 = 59,649.81 : x
  2. Step 2: Convert to fraction form
    109,950.81/151,732.40 = 59,649.81/x
  3. Step 3: Cross multiply
    109,950.81x = 151,732.40 × 59,649.81
  4. Step 4: Simplify right side
    109,950.81x = 9,050,808,830.84
  5. Step 5: Solve for x
    x = 9,050,808,830.84/109,950.81
  6. Step 6: Final answer
    x = 82,316.89

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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.