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Finding the Fourth Proportional to 239,564.58, 330,557.82 and 153,598.74

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Solution

The fourth proportional to 239,564.58, 330,557.82 and 153,598.74 is: 211,939.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,564.58 : 330,557.82 = 153,598.74 : x
  2. Step 2: Convert to fraction form
    239,564.58/330,557.82 = 153,598.74/x
  3. Step 3: Cross multiply
    239,564.58x = 330,557.82 × 153,598.74
  4. Step 4: Simplify right side
    239,564.58x = 50,773,264,649.15
  5. Step 5: Solve for x
    x = 50,773,264,649.15/239,564.58
  6. Step 6: Final answer
    x = 211,939.78

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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.