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Finding the Fourth Proportional to 120,095.39, 179,893.85 and 70,023.62

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Solution

The fourth proportional to 120,095.39, 179,893.85 and 70,023.62 is: 104,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,095.39 : 179,893.85 = 70,023.62 : x
  2. Step 2: Convert to fraction form
    120,095.39/179,893.85 = 70,023.62/x
  3. Step 3: Cross multiply
    120,095.39x = 179,893.85 × 70,023.62
  4. Step 4: Simplify right side
    120,095.39x = 12,596,817,343.15
  5. Step 5: Solve for x
    x = 12,596,817,343.15/120,095.39
  6. Step 6: Final answer
    x = 104,890.10

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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.