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Finding the Fourth Proportional to 153,443.16, 211,692.69 and 113,252.58

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Solution

The fourth proportional to 153,443.16, 211,692.69 and 113,252.58 is: 156,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,443.16 : 211,692.69 = 113,252.58 : x
  2. Step 2: Convert to fraction form
    153,443.16/211,692.69 = 113,252.58/x
  3. Step 3: Cross multiply
    153,443.16x = 211,692.69 × 113,252.58
  4. Step 4: Simplify right side
    153,443.16x = 23,974,743,309.64
  5. Step 5: Solve for x
    x = 23,974,743,309.64/153,443.16
  6. Step 6: Final answer
    x = 156,245.11

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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.