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Finding the Fourth Proportional to 522,099.71, 783,150.25 and 143,023.81

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Solution

The fourth proportional to 522,099.71, 783,150.25 and 143,023.81 is: 214,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,099.71 : 783,150.25 = 143,023.81 : x
  2. Step 2: Convert to fraction form
    522,099.71/783,150.25 = 143,023.81/x
  3. Step 3: Cross multiply
    522,099.71x = 783,150.25 × 143,023.81
  4. Step 4: Simplify right side
    522,099.71x = 112,009,131,576.34
  5. Step 5: Solve for x
    x = 112,009,131,576.34/522,099.71
  6. Step 6: Final answer
    x = 214,535.90

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Similar ratio
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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.