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Finding the Fourth Proportional to 111,461.72, 166,907.14 and 61,486.28

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Solution

The fourth proportional to 111,461.72, 166,907.14 and 61,486.28 is: 92,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,461.72 : 166,907.14 = 61,486.28 : x
  2. Step 2: Convert to fraction form
    111,461.72/166,907.14 = 61,486.28/x
  3. Step 3: Cross multiply
    111,461.72x = 166,907.14 × 61,486.28
  4. Step 4: Simplify right side
    111,461.72x = 10,262,498,155.79
  5. Step 5: Solve for x
    x = 10,262,498,155.79/111,461.72
  6. Step 6: Final answer
    x = 92,071.95

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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.