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Finding the Fourth Proportional to 249,704.79, 374,594.48 and 91,921.25

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Solution

The fourth proportional to 249,704.79, 374,594.48 and 91,921.25 is: 137,895.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,704.79 : 374,594.48 = 91,921.25 : x
  2. Step 2: Convert to fraction form
    249,704.79/374,594.48 = 91,921.25/x
  3. Step 3: Cross multiply
    249,704.79x = 374,594.48 × 91,921.25
  4. Step 4: Simplify right side
    249,704.79x = 34,433,190,512.12
  5. Step 5: Solve for x
    x = 34,433,190,512.12/249,704.79
  6. Step 6: Final answer
    x = 137,895.59

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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.