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Finding the Fourth Proportional to 152,341.80, 228,512.70 and 40,014.60

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Solution

The fourth proportional to 152,341.80, 228,512.70 and 40,014.60 is: 60,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,341.80 : 228,512.70 = 40,014.60 : x
  2. Step 2: Convert to fraction form
    152,341.80/228,512.70 = 40,014.60/x
  3. Step 3: Cross multiply
    152,341.80x = 228,512.70 × 40,014.60
  4. Step 4: Simplify right side
    152,341.80x = 9,143,844,285.42
  5. Step 5: Solve for x
    x = 9,143,844,285.42/152,341.80
  6. Step 6: Final answer
    x = 60,021.90

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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.