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Finding the Fourth Proportional to 249,365.79, 343,679.76 and 188,791.29

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Solution

The fourth proportional to 249,365.79, 343,679.76 and 188,791.29 is: 260,195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,365.79 : 343,679.76 = 188,791.29 : x
  2. Step 2: Convert to fraction form
    249,365.79/343,679.76 = 188,791.29/x
  3. Step 3: Cross multiply
    249,365.79x = 343,679.76 × 188,791.29
  4. Step 4: Simplify right side
    249,365.79x = 64,883,745,237.29
  5. Step 5: Solve for x
    x = 64,883,745,237.29/249,365.79
  6. Step 6: Final answer
    x = 260,195.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.