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Finding the Fourth Proportional to 522,532.69, 783,930.76 and 148,555.69

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Solution

The fourth proportional to 522,532.69, 783,930.76 and 148,555.69 is: 222,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,532.69 : 783,930.76 = 148,555.69 : x
  2. Step 2: Convert to fraction form
    522,532.69/783,930.76 = 148,555.69/x
  3. Step 3: Cross multiply
    522,532.69x = 783,930.76 × 148,555.69
  4. Step 4: Simplify right side
    522,532.69x = 116,457,372,632.81
  5. Step 5: Solve for x
    x = 116,457,372,632.81/522,532.69
  6. Step 6: Final answer
    x = 222,870.98

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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.