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Finding the Fourth Proportional to 112,311.66, 154,986.03 and 62,009.58

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Solution

The fourth proportional to 112,311.66, 154,986.03 and 62,009.58 is: 85,570.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,311.66 : 154,986.03 = 62,009.58 : x
  2. Step 2: Convert to fraction form
    112,311.66/154,986.03 = 62,009.58/x
  3. Step 3: Cross multiply
    112,311.66x = 154,986.03 × 62,009.58
  4. Step 4: Simplify right side
    112,311.66x = 9,610,618,626.17
  5. Step 5: Solve for x
    x = 9,610,618,626.17/112,311.66
  6. Step 6: Final answer
    x = 85,570.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.