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Finding the Fourth Proportional to 74,491.50, 111,737.52 and 70,754.16

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Solution

The fourth proportional to 74,491.50, 111,737.52 and 70,754.16 is: 106,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,491.50 : 111,737.52 = 70,754.16 : x
  2. Step 2: Convert to fraction form
    74,491.50/111,737.52 = 70,754.16/x
  3. Step 3: Cross multiply
    74,491.50x = 111,737.52 × 70,754.16
  4. Step 4: Simplify right side
    74,491.50x = 7,905,894,368.08
  5. Step 5: Solve for x
    x = 7,905,894,368.08/74,491.50
  6. Step 6: Final answer
    x = 106,131.50

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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.