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Finding the Fourth Proportional to 88,799.74, 122,543.91 and 51,071.50

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Solution

The fourth proportional to 88,799.74, 122,543.91 and 51,071.50 is: 70,478.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,799.74 : 122,543.91 = 51,071.50 : x
  2. Step 2: Convert to fraction form
    88,799.74/122,543.91 = 51,071.50/x
  3. Step 3: Cross multiply
    88,799.74x = 122,543.91 × 51,071.50
  4. Step 4: Simplify right side
    88,799.74x = 6,258,501,299.57
  5. Step 5: Solve for x
    x = 6,258,501,299.57/88,799.74
  6. Step 6: Final answer
    x = 70,478.82

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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.