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Finding the Fourth Proportional to 131,750.40, 196,088.80 and 131,340.80

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Solution

The fourth proportional to 131,750.40, 196,088.80 and 131,340.80 is: 195,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,750.40 : 196,088.80 = 131,340.80 : x
  2. Step 2: Convert to fraction form
    131,750.40/196,088.80 = 131,340.80/x
  3. Step 3: Cross multiply
    131,750.40x = 196,088.80 × 131,340.80
  4. Step 4: Simplify right side
    131,750.40x = 25,754,459,863.04
  5. Step 5: Solve for x
    x = 25,754,459,863.04/131,750.40
  6. Step 6: Final answer
    x = 195,479.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.