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Finding the Fourth Proportional to 292,959.54, 439,327.83 and 103,384.58

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Solution

The fourth proportional to 292,959.54, 439,327.83 and 103,384.58 is: 155,037.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,959.54 : 439,327.83 = 103,384.58 : x
  2. Step 2: Convert to fraction form
    292,959.54/439,327.83 = 103,384.58/x
  3. Step 3: Cross multiply
    292,959.54x = 439,327.83 × 103,384.58
  4. Step 4: Simplify right side
    292,959.54x = 45,419,720,990.22
  5. Step 5: Solve for x
    x = 45,419,720,990.22/292,959.54
  6. Step 6: Final answer
    x = 155,037.52

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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.