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Finding the Fourth Proportional to 166,098.30, 249,147.45 and 91,448.70

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Solution

The fourth proportional to 166,098.30, 249,147.45 and 91,448.70 is: 137,173.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,098.30 : 249,147.45 = 91,448.70 : x
  2. Step 2: Convert to fraction form
    166,098.30/249,147.45 = 91,448.70/x
  3. Step 3: Cross multiply
    166,098.30x = 249,147.45 × 91,448.70
  4. Step 4: Simplify right side
    166,098.30x = 22,784,210,410.82
  5. Step 5: Solve for x
    x = 22,784,210,410.82/166,098.30
  6. Step 6: Final answer
    x = 137,173.05

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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.