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Finding the Fourth Proportional to 124,281.60, 171,509.44 and 67,692.48

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Solution

The fourth proportional to 124,281.60, 171,509.44 and 67,692.48 is: 93,416.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,281.60 : 171,509.44 = 67,692.48 : x
  2. Step 2: Convert to fraction form
    124,281.60/171,509.44 = 67,692.48/x
  3. Step 3: Cross multiply
    124,281.60x = 171,509.44 × 67,692.48
  4. Step 4: Simplify right side
    124,281.60x = 11,609,899,337.01
  5. Step 5: Solve for x
    x = 11,609,899,337.01/124,281.60
  6. Step 6: Final answer
    x = 93,416.08

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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.