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Finding the Fourth Proportional to 106,196.40, 146,487.60 and 67,964.40

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Solution

The fourth proportional to 106,196.40, 146,487.60 and 67,964.40 is: 93,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,196.40 : 146,487.60 = 67,964.40 : x
  2. Step 2: Convert to fraction form
    106,196.40/146,487.60 = 67,964.40/x
  3. Step 3: Cross multiply
    106,196.40x = 146,487.60 × 67,964.40
  4. Step 4: Simplify right side
    106,196.40x = 9,955,941,841.44
  5. Step 5: Solve for x
    x = 9,955,941,841.44/106,196.40
  6. Step 6: Final answer
    x = 93,750.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.