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Finding the Fourth Proportional to 103,760, 155,390.60 and 59,252

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Solution

The fourth proportional to 103,760, 155,390.60 and 59,252 is: 88,735.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,760 : 155,390.60 = 59,252 : x
  2. Step 2: Convert to fraction form
    103,760/155,390.60 = 59,252/x
  3. Step 3: Cross multiply
    103,760x = 155,390.60 × 59,252
  4. Step 4: Simplify right side
    103,760x = 9,207,203,831.20
  5. Step 5: Solve for x
    x = 9,207,203,831.20/103,760
  6. Step 6: Final answer
    x = 88,735.58

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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.