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Finding the Fourth Proportional to 668,681.82, 1,003,019.16 and 163,245.45

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Solution

The fourth proportional to 668,681.82, 1,003,019.16 and 163,245.45 is: 244,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,681.82 : 1,003,019.16 = 163,245.45 : x
  2. Step 2: Convert to fraction form
    668,681.82/1,003,019.16 = 163,245.45/x
  3. Step 3: Cross multiply
    668,681.82x = 1,003,019.16 × 163,245.45
  4. Step 4: Simplify right side
    668,681.82x = 163,738,314,132.82
  5. Step 5: Solve for x
    x = 163,738,314,132.82/668,681.82
  6. Step 6: Final answer
    x = 244,867.30

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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.