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Finding the Fourth Proportional to 452,866.20, 679,277.70 and 153,317.40

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Solution

The fourth proportional to 452,866.20, 679,277.70 and 153,317.40 is: 229,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,866.20 : 679,277.70 = 153,317.40 : x
  2. Step 2: Convert to fraction form
    452,866.20/679,277.70 = 153,317.40/x
  3. Step 3: Cross multiply
    452,866.20x = 679,277.70 × 153,317.40
  4. Step 4: Simplify right side
    452,866.20x = 104,145,090,841.98
  5. Step 5: Solve for x
    x = 104,145,090,841.98/452,866.20
  6. Step 6: Final answer
    x = 229,968.79

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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.