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Finding the Fourth Proportional to 125,269.84, 172,883.28 and 68,692.24

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Solution

The fourth proportional to 125,269.84, 172,883.28 and 68,692.24 is: 94,801.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,269.84 : 172,883.28 = 68,692.24 : x
  2. Step 2: Convert to fraction form
    125,269.84/172,883.28 = 68,692.24/x
  3. Step 3: Cross multiply
    125,269.84x = 172,883.28 × 68,692.24
  4. Step 4: Simplify right side
    125,269.84x = 11,875,739,761.75
  5. Step 5: Solve for x
    x = 11,875,739,761.75/125,269.84
  6. Step 6: Final answer
    x = 94,801.27

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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.