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Finding the Fourth Proportional to 374,099.91, 561,373.43 and 137,466.51

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Solution

The fourth proportional to 374,099.91, 561,373.43 and 137,466.51 is: 206,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,099.91 : 561,373.43 = 137,466.51 : x
  2. Step 2: Convert to fraction form
    374,099.91/561,373.43 = 137,466.51/x
  3. Step 3: Cross multiply
    374,099.91x = 561,373.43 × 137,466.51
  4. Step 4: Simplify right side
    374,099.91x = 77,170,045,541.50
  5. Step 5: Solve for x
    x = 77,170,045,541.50/374,099.91
  6. Step 6: Final answer
    x = 206,281.91

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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.