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Finding the Fourth Proportional to 131,244.80, 196,732.80 and 64,582.40

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Solution

The fourth proportional to 131,244.80, 196,732.80 and 64,582.40 is: 96,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,244.80 : 196,732.80 = 64,582.40 : x
  2. Step 2: Convert to fraction form
    131,244.80/196,732.80 = 64,582.40/x
  3. Step 3: Cross multiply
    131,244.80x = 196,732.80 × 64,582.40
  4. Step 4: Simplify right side
    131,244.80x = 12,705,476,382.72
  5. Step 5: Solve for x
    x = 12,705,476,382.72/131,244.80
  6. Step 6: Final answer
    x = 96,807.47

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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.