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Finding the Fourth Proportional to 99,275.76, 148,829.94 and 43,073.64

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Solution

The fourth proportional to 99,275.76, 148,829.94 and 43,073.64 is: 64,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,275.76 : 148,829.94 = 43,073.64 : x
  2. Step 2: Convert to fraction form
    99,275.76/148,829.94 = 43,073.64/x
  3. Step 3: Cross multiply
    99,275.76x = 148,829.94 × 43,073.64
  4. Step 4: Simplify right side
    99,275.76x = 6,410,647,256.78
  5. Step 5: Solve for x
    x = 6,410,647,256.78/99,275.76
  6. Step 6: Final answer
    x = 64,574.14

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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.