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Finding the Fourth Proportional to 77,114.50, 115,023.53 and 70,027.54

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Solution

The fourth proportional to 77,114.50, 115,023.53 and 70,027.54 is: 104,452.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,114.50 : 115,023.53 = 70,027.54 : x
  2. Step 2: Convert to fraction form
    77,114.50/115,023.53 = 70,027.54/x
  3. Step 3: Cross multiply
    77,114.50x = 115,023.53 × 70,027.54
  4. Step 4: Simplify right side
    77,114.50x = 8,054,814,848.02
  5. Step 5: Solve for x
    x = 8,054,814,848.02/77,114.50
  6. Step 6: Final answer
    x = 104,452.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.