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Finding the Fourth Proportional to 84,690.38, 127,035.41 and 46,737.81

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Solution

The fourth proportional to 84,690.38, 127,035.41 and 46,737.81 is: 70,106.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,690.38 : 127,035.41 = 46,737.81 : x
  2. Step 2: Convert to fraction form
    84,690.38/127,035.41 = 46,737.81/x
  3. Step 3: Cross multiply
    84,690.38x = 127,035.41 × 46,737.81
  4. Step 4: Simplify right side
    84,690.38x = 5,937,356,855.85
  5. Step 5: Solve for x
    x = 5,937,356,855.85/84,690.38
  6. Step 6: Final answer
    x = 70,106.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.