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Finding the Fourth Proportional to 668,888.02, 1,003,205.85 and 189,112

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Solution

The fourth proportional to 668,888.02, 1,003,205.85 and 189,112 is: 283,632.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,888.02 : 1,003,205.85 = 189,112 : x
  2. Step 2: Convert to fraction form
    668,888.02/1,003,205.85 = 189,112/x
  3. Step 3: Cross multiply
    668,888.02x = 1,003,205.85 × 189,112
  4. Step 4: Simplify right side
    668,888.02x = 189,718,264,705.20
  5. Step 5: Solve for x
    x = 189,718,264,705.20/668,888.02
  6. Step 6: Final answer
    x = 283,632.33

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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.