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Finding the Fourth Proportional to 166,431.80, 249,655.80 and 46,488.62

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Solution

The fourth proportional to 166,431.80, 249,655.80 and 46,488.62 is: 69,735.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,431.80 : 249,655.80 = 46,488.62 : x
  2. Step 2: Convert to fraction form
    166,431.80/249,655.80 = 46,488.62/x
  3. Step 3: Cross multiply
    166,431.80x = 249,655.80 × 46,488.62
  4. Step 4: Simplify right side
    166,431.80x = 11,606,153,617.00
  5. Step 5: Solve for x
    x = 11,606,153,617.00/166,431.80
  6. Step 6: Final answer
    x = 69,735.19

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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.