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Finding the Fourth Proportional to 219,754.61, 329,681.63 and 70,003.43

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Solution

The fourth proportional to 219,754.61, 329,681.63 and 70,003.43 is: 105,020.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,754.61 : 329,681.63 = 70,003.43 : x
  2. Step 2: Convert to fraction form
    219,754.61/329,681.63 = 70,003.43/x
  3. Step 3: Cross multiply
    219,754.61x = 329,681.63 × 70,003.43
  4. Step 4: Simplify right side
    219,754.61x = 23,078,844,907.99
  5. Step 5: Solve for x
    x = 23,078,844,907.99/219,754.61
  6. Step 6: Final answer
    x = 105,020.98

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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.