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Finding the Fourth Proportional to 429,750.52, 644,625.74 and 134,262.52

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Solution

The fourth proportional to 429,750.52, 644,625.74 and 134,262.52 is: 201,393.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,750.52 : 644,625.74 = 134,262.52 : x
  2. Step 2: Convert to fraction form
    429,750.52/644,625.74 = 134,262.52/x
  3. Step 3: Cross multiply
    429,750.52x = 644,625.74 × 134,262.52
  4. Step 4: Simplify right side
    429,750.52x = 86,549,076,309.26
  5. Step 5: Solve for x
    x = 86,549,076,309.26/429,750.52
  6. Step 6: Final answer
    x = 201,393.77

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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.