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Finding the Fourth Proportional to 64,726,652.20, 97,089,978.30 and 16,857,596.20

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Solution

The fourth proportional to 64,726,652.20, 97,089,978.30 and 16,857,596.20 is: 25,286,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,726,652.20 : 97,089,978.30 = 16,857,596.20 : x
  2. Step 2: Convert to fraction form
    64,726,652.20/97,089,978.30 = 16,857,596.20/x
  3. Step 3: Cross multiply
    64,726,652.20x = 97,089,978.30 × 16,857,596.20
  4. Step 4: Simplify right side
    64,726,652.20x = 1,636,703,649,248,162.25
  5. Step 5: Solve for x
    x = 1,636,703,649,248,162.25/64,726,652.20
  6. Step 6: Final answer
    x = 25,286,394.30

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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.