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Finding the Fourth Proportional to 77,874.84, 116,737.65 and 49,715.46

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Solution

The fourth proportional to 77,874.84, 116,737.65 and 49,715.46 is: 74,525.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,874.84 : 116,737.65 = 49,715.46 : x
  2. Step 2: Convert to fraction form
    77,874.84/116,737.65 = 49,715.46/x
  3. Step 3: Cross multiply
    77,874.84x = 116,737.65 × 49,715.46
  4. Step 4: Simplify right side
    77,874.84x = 5,803,665,969.07
  5. Step 5: Solve for x
    x = 5,803,665,969.07/77,874.84
  6. Step 6: Final answer
    x = 74,525.56

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1.5x scale

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.