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Finding the Fourth Proportional to 122,090.76, 168,487.47 and 73,692.74

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Solution

The fourth proportional to 122,090.76, 168,487.47 and 73,692.74 is: 101,697.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,090.76 : 168,487.47 = 73,692.74 : x
  2. Step 2: Convert to fraction form
    122,090.76/168,487.47 = 73,692.74/x
  3. Step 3: Cross multiply
    122,090.76x = 168,487.47 × 73,692.74
  4. Step 4: Simplify right side
    122,090.76x = 12,416,303,741.19
  5. Step 5: Solve for x
    x = 12,416,303,741.19/122,090.76
  6. Step 6: Final answer
    x = 101,697.33

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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.