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Finding the Fourth Proportional to 334,505.32, 501,645.52 and 121,228.58

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Solution

The fourth proportional to 334,505.32, 501,645.52 and 121,228.58 is: 181,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,505.32 : 501,645.52 = 121,228.58 : x
  2. Step 2: Convert to fraction form
    334,505.32/501,645.52 = 121,228.58/x
  3. Step 3: Cross multiply
    334,505.32x = 501,645.52 × 121,228.58
  4. Step 4: Simplify right side
    334,505.32x = 60,813,771,544.73
  5. Step 5: Solve for x
    x = 60,813,771,544.73/334,505.32
  6. Step 6: Final answer
    x = 181,802.11

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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.