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Finding the Fourth Proportional to 249,679.55, 344,559.34 and 134,957.96

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Solution

The fourth proportional to 249,679.55, 344,559.34 and 134,957.96 is: 186,242.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,679.55 : 344,559.34 = 134,957.96 : x
  2. Step 2: Convert to fraction form
    249,679.55/344,559.34 = 134,957.96/x
  3. Step 3: Cross multiply
    249,679.55x = 344,559.34 × 134,957.96
  4. Step 4: Simplify right side
    249,679.55x = 46,501,023,902.55
  5. Step 5: Solve for x
    x = 46,501,023,902.55/249,679.55
  6. Step 6: Final answer
    x = 186,242.82

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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.