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Finding the Fourth Proportional to 292,646.16, 438,630.39 and 134,542.80

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Solution

The fourth proportional to 292,646.16, 438,630.39 and 134,542.80 is: 201,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,646.16 : 438,630.39 = 134,542.80 : x
  2. Step 2: Convert to fraction form
    292,646.16/438,630.39 = 134,542.80/x
  3. Step 3: Cross multiply
    292,646.16x = 438,630.39 × 134,542.80
  4. Step 4: Simplify right side
    292,646.16x = 59,014,560,835.69
  5. Step 5: Solve for x
    x = 59,014,560,835.69/292,646.16
  6. Step 6: Final answer
    x = 201,658.42

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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.