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Finding the Fourth Proportional to 125,692.01, 173,492.37 and 72,012.77

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Solution

The fourth proportional to 125,692.01, 173,492.37 and 72,012.77 is: 99,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,692.01 : 173,492.37 = 72,012.77 : x
  2. Step 2: Convert to fraction form
    125,692.01/173,492.37 = 72,012.77/x
  3. Step 3: Cross multiply
    125,692.01x = 173,492.37 × 72,012.77
  4. Step 4: Simplify right side
    125,692.01x = 12,493,666,571.30
  5. Step 5: Solve for x
    x = 12,493,666,571.30/125,692.01
  6. Step 6: Final answer
    x = 99,399.05

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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.