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Finding the Fourth Proportional to 112,189.50, 154,824.44 and 61,203.06

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Solution

The fourth proportional to 112,189.50, 154,824.44 and 61,203.06 is: 84,461.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,189.50 : 154,824.44 = 61,203.06 : x
  2. Step 2: Convert to fraction form
    112,189.50/154,824.44 = 61,203.06/x
  3. Step 3: Cross multiply
    112,189.50x = 154,824.44 × 61,203.06
  4. Step 4: Simplify right side
    112,189.50x = 9,475,729,184.77
  5. Step 5: Solve for x
    x = 9,475,729,184.77/112,189.50
  6. Step 6: Final answer
    x = 84,461.82

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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.