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Finding the Fourth Proportional to 103,647.92, 155,222.74 and 59,139.74

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Solution

The fourth proportional to 103,647.92, 155,222.74 and 59,139.74 is: 88,567.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,647.92 : 155,222.74 = 59,139.74 : x
  2. Step 2: Convert to fraction form
    103,647.92/155,222.74 = 59,139.74/x
  3. Step 3: Cross multiply
    103,647.92x = 155,222.74 × 59,139.74
  4. Step 4: Simplify right side
    103,647.92x = 9,179,832,485.69
  5. Step 5: Solve for x
    x = 9,179,832,485.69/103,647.92
  6. Step 6: Final answer
    x = 88,567.45

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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.