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Finding the Fourth Proportional to 102,763.36, 154,166.12 and 39,583.36

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Solution

The fourth proportional to 102,763.36, 154,166.12 and 39,583.36 is: 59,383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,763.36 : 154,166.12 = 39,583.36 : x
  2. Step 2: Convert to fraction form
    102,763.36/154,166.12 = 39,583.36/x
  3. Step 3: Cross multiply
    102,763.36x = 154,166.12 × 39,583.36
  4. Step 4: Simplify right side
    102,763.36x = 6,102,413,027.76
  5. Step 5: Solve for x
    x = 6,102,413,027.76/102,763.36
  6. Step 6: Final answer
    x = 59,383.16

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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.