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Finding the Fourth Proportional to 369,783.99, 554,747.91 and 142,063.02

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Solution

The fourth proportional to 369,783.99, 554,747.91 and 142,063.02 is: 213,122.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,783.99 : 554,747.91 = 142,063.02 : x
  2. Step 2: Convert to fraction form
    369,783.99/554,747.91 = 142,063.02/x
  3. Step 3: Cross multiply
    369,783.99x = 554,747.91 × 142,063.02
  4. Step 4: Simplify right side
    369,783.99x = 78,809,163,433.29
  5. Step 5: Solve for x
    x = 78,809,163,433.29/369,783.99
  6. Step 6: Final answer
    x = 213,122.16

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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.