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Finding the Fourth Proportional to 103,487.63, 155,258.78 and 33,368.76

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Solution

The fourth proportional to 103,487.63, 155,258.78 and 33,368.76 is: 50,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,487.63 : 155,258.78 = 33,368.76 : x
  2. Step 2: Convert to fraction form
    103,487.63/155,258.78 = 33,368.76/x
  3. Step 3: Cross multiply
    103,487.63x = 155,258.78 × 33,368.76
  4. Step 4: Simplify right side
    103,487.63x = 5,180,792,800.87
  5. Step 5: Solve for x
    x = 5,180,792,800.87/103,487.63
  6. Step 6: Final answer
    x = 50,061.95

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1.5x scale

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.