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Finding the Fourth Proportional to 131,465.70, 197,267.40 and 60,409.80

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Solution

The fourth proportional to 131,465.70, 197,267.40 and 60,409.80 is: 90,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,465.70 : 197,267.40 = 60,409.80 : x
  2. Step 2: Convert to fraction form
    131,465.70/197,267.40 = 60,409.80/x
  3. Step 3: Cross multiply
    131,465.70x = 197,267.40 × 60,409.80
  4. Step 4: Simplify right side
    131,465.70x = 11,916,884,180.52
  5. Step 5: Solve for x
    x = 11,916,884,180.52/131,465.70
  6. Step 6: Final answer
    x = 90,646.34

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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.