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Finding the Fourth Proportional to 70,932.96, 106,085.70 and 63,090.48

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Solution

The fourth proportional to 70,932.96, 106,085.70 and 63,090.48 is: 94,356.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,932.96 : 106,085.70 = 63,090.48 : x
  2. Step 2: Convert to fraction form
    70,932.96/106,085.70 = 63,090.48/x
  3. Step 3: Cross multiply
    70,932.96x = 106,085.70 × 63,090.48
  4. Step 4: Simplify right side
    70,932.96x = 6,692,997,734.14
  5. Step 5: Solve for x
    x = 6,692,997,734.14/70,932.96
  6. Step 6: Final answer
    x = 94,356.67

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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.