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Finding the Fourth Proportional to 249,668.57, 374,466 and 91,860.32

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Solution

The fourth proportional to 249,668.57, 374,466 and 91,860.32 is: 137,776.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,668.57 : 374,466 = 91,860.32 : x
  2. Step 2: Convert to fraction form
    249,668.57/374,466 = 91,860.32/x
  3. Step 3: Cross multiply
    249,668.57x = 374,466 × 91,860.32
  4. Step 4: Simplify right side
    249,668.57x = 34,398,566,589.12
  5. Step 5: Solve for x
    x = 34,398,566,589.12/249,668.57
  6. Step 6: Final answer
    x = 137,776.92

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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.