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Finding the Fourth Proportional to 112,099,662.90, 168,149,494.35 and 83,401,848.90

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Solution

The fourth proportional to 112,099,662.90, 168,149,494.35 and 83,401,848.90 is: 125,102,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,099,662.90 : 168,149,494.35 = 83,401,848.90 : x
  2. Step 2: Convert to fraction form
    112,099,662.90/168,149,494.35 = 83,401,848.90/x
  3. Step 3: Cross multiply
    112,099,662.90x = 168,149,494.35 × 83,401,848.90
  4. Step 4: Simplify right side
    112,099,662.90x = 14,023,978,720,390,104
  5. Step 5: Solve for x
    x = 14,023,978,720,390,104/112,099,662.90
  6. Step 6: Final answer
    x = 125,102,773.35

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1.5x scale

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.