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Finding the Fourth Proportional to 106,482.40, 159,723.60 and 97,880.80

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Solution

The fourth proportional to 106,482.40, 159,723.60 and 97,880.80 is: 146,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,482.40 : 159,723.60 = 97,880.80 : x
  2. Step 2: Convert to fraction form
    106,482.40/159,723.60 = 97,880.80/x
  3. Step 3: Cross multiply
    106,482.40x = 159,723.60 × 97,880.80
  4. Step 4: Simplify right side
    106,482.40x = 15,633,873,746.88
  5. Step 5: Solve for x
    x = 15,633,873,746.88/106,482.40
  6. Step 6: Final answer
    x = 146,821.20

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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.