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Finding the Fourth Proportional to 61,274,096.70, 91,911,145.05 and 30,978,023.10

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Solution

The fourth proportional to 61,274,096.70, 91,911,145.05 and 30,978,023.10 is: 46,467,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,274,096.70 : 91,911,145.05 = 30,978,023.10 : x
  2. Step 2: Convert to fraction form
    61,274,096.70/91,911,145.05 = 30,978,023.10/x
  3. Step 3: Cross multiply
    61,274,096.70x = 91,911,145.05 × 30,978,023.10
  4. Step 4: Simplify right side
    61,274,096.70x = 2,847,225,574,506,350.50
  5. Step 5: Solve for x
    x = 2,847,225,574,506,350.50/61,274,096.70
  6. Step 6: Final answer
    x = 46,467,034.65

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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.