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Finding the Fourth Proportional to 131,247.60, 196,669.80 and 97,810.80

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Solution

The fourth proportional to 131,247.60, 196,669.80 and 97,810.80 is: 146,565.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,247.60 : 196,669.80 = 97,810.80 : x
  2. Step 2: Convert to fraction form
    131,247.60/196,669.80 = 97,810.80/x
  3. Step 3: Cross multiply
    131,247.60x = 196,669.80 × 97,810.80
  4. Step 4: Simplify right side
    131,247.60x = 19,236,430,473.84
  5. Step 5: Solve for x
    x = 19,236,430,473.84/131,247.60
  6. Step 6: Final answer
    x = 146,565.96

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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.