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Finding the Fourth Proportional to 302,692.20, 453,928.95 and 122,702.10

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Solution

The fourth proportional to 302,692.20, 453,928.95 and 122,702.10 is: 184,008.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,692.20 : 453,928.95 = 122,702.10 : x
  2. Step 2: Convert to fraction form
    302,692.20/453,928.95 = 122,702.10/x
  3. Step 3: Cross multiply
    302,692.20x = 453,928.95 × 122,702.10
  4. Step 4: Simplify right side
    302,692.20x = 55,698,035,415.80
  5. Step 5: Solve for x
    x = 55,698,035,415.80/302,692.20
  6. Step 6: Final answer
    x = 184,008.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.