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Finding the Fourth Proportional to 131,762.80, 197,663.37 and 42,994.45

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Solution

The fourth proportional to 131,762.80, 197,663.37 and 42,994.45 is: 64,497.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,762.80 : 197,663.37 = 42,994.45 : x
  2. Step 2: Convert to fraction form
    131,762.80/197,663.37 = 42,994.45/x
  3. Step 3: Cross multiply
    131,762.80x = 197,663.37 × 42,994.45
  4. Step 4: Simplify right side
    131,762.80x = 8,498,427,878.30
  5. Step 5: Solve for x
    x = 8,498,427,878.30/131,762.80
  6. Step 6: Final answer
    x = 64,497.93

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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.