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Finding the Fourth Proportional to 249,771.54, 374,680.90 and 69,856.91

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Solution

The fourth proportional to 249,771.54, 374,680.90 and 69,856.91 is: 104,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,771.54 : 374,680.90 = 69,856.91 : x
  2. Step 2: Convert to fraction form
    249,771.54/374,680.90 = 69,856.91/x
  3. Step 3: Cross multiply
    249,771.54x = 374,680.90 × 69,856.91
  4. Step 4: Simplify right side
    249,771.54x = 26,174,048,123.94
  5. Step 5: Solve for x
    x = 26,174,048,123.94/249,771.54
  6. Step 6: Final answer
    x = 104,791.96

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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.