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Finding the Fourth Proportional to 107,304.50, 148,080.21 and 69,579.02

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Solution

The fourth proportional to 107,304.50, 148,080.21 and 69,579.02 is: 96,019.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,304.50 : 148,080.21 = 69,579.02 : x
  2. Step 2: Convert to fraction form
    107,304.50/148,080.21 = 69,579.02/x
  3. Step 3: Cross multiply
    107,304.50x = 148,080.21 × 69,579.02
  4. Step 4: Simplify right side
    107,304.50x = 10,303,275,893.19
  5. Step 5: Solve for x
    x = 10,303,275,893.19/107,304.50
  6. Step 6: Final answer
    x = 96,019.05

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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.