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Finding the Fourth Proportional to 64,674,086.80, 97,024,608.60 and 21,556,685.20

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Solution

The fourth proportional to 64,674,086.80, 97,024,608.60 and 21,556,685.20 is: 32,339,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,674,086.80 : 97,024,608.60 = 21,556,685.20 : x
  2. Step 2: Convert to fraction form
    64,674,086.80/97,024,608.60 = 21,556,685.20/x
  3. Step 3: Cross multiply
    64,674,086.80x = 97,024,608.60 × 21,556,685.20
  4. Step 4: Simplify right side
    64,674,086.80x = 2,091,528,944,243,412.50
  5. Step 5: Solve for x
    x = 2,091,528,944,243,412.50/64,674,086.80
  6. Step 6: Final answer
    x = 32,339,520.32

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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.