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Finding the Fourth Proportional to 103,258.10, 154,850.70 and 36,700.40

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Solution

The fourth proportional to 103,258.10, 154,850.70 and 36,700.40 is: 55,037.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,258.10 : 154,850.70 = 36,700.40 : x
  2. Step 2: Convert to fraction form
    103,258.10/154,850.70 = 36,700.40/x
  3. Step 3: Cross multiply
    103,258.10x = 154,850.70 × 36,700.40
  4. Step 4: Simplify right side
    103,258.10x = 5,683,082,630.28
  5. Step 5: Solve for x
    x = 5,683,082,630.28/103,258.10
  6. Step 6: Final answer
    x = 55,037.64

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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.