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Finding the Fourth Proportional to 517,833.36, 776,833.68 and 153,131.88

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Solution

The fourth proportional to 517,833.36, 776,833.68 and 153,131.88 is: 229,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,833.36 : 776,833.68 = 153,131.88 : x
  2. Step 2: Convert to fraction form
    517,833.36/776,833.68 = 153,131.88/x
  3. Step 3: Cross multiply
    517,833.36x = 776,833.68 × 153,131.88
  4. Step 4: Simplify right side
    517,833.36x = 118,958,001,865.72
  5. Step 5: Solve for x
    x = 118,958,001,865.72/517,833.36
  6. Step 6: Final answer
    x = 229,722.55

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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.