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Finding the Fourth Proportional to 445,504.15, 668,222.62 and 141,886.04

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Solution

The fourth proportional to 445,504.15, 668,222.62 and 141,886.04 is: 212,818.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,504.15 : 668,222.62 = 141,886.04 : x
  2. Step 2: Convert to fraction form
    445,504.15/668,222.62 = 141,886.04/x
  3. Step 3: Cross multiply
    445,504.15x = 668,222.62 × 141,886.04
  4. Step 4: Simplify right side
    445,504.15x = 94,811,461,390.22
  5. Step 5: Solve for x
    x = 94,811,461,390.22/445,504.15
  6. Step 6: Final answer
    x = 212,818.36

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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.