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Finding the Fourth Proportional to 75,101.42, 103,632.90 and 44,880.72

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Solution

The fourth proportional to 75,101.42, 103,632.90 and 44,880.72 is: 61,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,101.42 : 103,632.90 = 44,880.72 : x
  2. Step 2: Convert to fraction form
    75,101.42/103,632.90 = 44,880.72/x
  3. Step 3: Cross multiply
    75,101.42x = 103,632.90 × 44,880.72
  4. Step 4: Simplify right side
    75,101.42x = 4,651,119,167.69
  5. Step 5: Solve for x
    x = 4,651,119,167.69/75,101.42
  6. Step 6: Final answer
    x = 61,931.17

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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.