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Finding the Fourth Proportional to 61,732.86, 85,190.71 and 34,875.33

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Solution

The fourth proportional to 61,732.86, 85,190.71 and 34,875.33 is: 48,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,732.86 : 85,190.71 = 34,875.33 : x
  2. Step 2: Convert to fraction form
    61,732.86/85,190.71 = 34,875.33/x
  3. Step 3: Cross multiply
    61,732.86x = 85,190.71 × 34,875.33
  4. Step 4: Simplify right side
    61,732.86x = 2,971,054,124.18
  5. Step 5: Solve for x
    x = 2,971,054,124.18/61,732.86
  6. Step 6: Final answer
    x = 48,127.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.