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Finding the Fourth Proportional to 122,087, 168,482.29 and 73,688.99

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Solution

The fourth proportional to 122,087, 168,482.29 and 73,688.99 is: 101,692.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,087 : 168,482.29 = 73,688.99 : x
  2. Step 2: Convert to fraction form
    122,087/168,482.29 = 73,688.99/x
  3. Step 3: Cross multiply
    122,087x = 168,482.29 × 73,688.99
  4. Step 4: Simplify right side
    122,087x = 12,415,289,835.75
  5. Step 5: Solve for x
    x = 12,415,289,835.75/122,087
  6. Step 6: Final answer
    x = 101,692.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.