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Finding the Fourth Proportional to 152,133.90, 228,200.85 and 69,027.90

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Solution

The fourth proportional to 152,133.90, 228,200.85 and 69,027.90 is: 103,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,133.90 : 228,200.85 = 69,027.90 : x
  2. Step 2: Convert to fraction form
    152,133.90/228,200.85 = 69,027.90/x
  3. Step 3: Cross multiply
    152,133.90x = 228,200.85 × 69,027.90
  4. Step 4: Simplify right side
    152,133.90x = 15,752,225,453.72
  5. Step 5: Solve for x
    x = 15,752,225,453.72/152,133.90
  6. Step 6: Final answer
    x = 103,541.85

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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.