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Finding the Fourth Proportional to 64,672,939.20, 97,009,408.80 and 26,314,708.80

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Solution

The fourth proportional to 64,672,939.20, 97,009,408.80 and 26,314,708.80 is: 39,472,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,672,939.20 : 97,009,408.80 = 26,314,708.80 : x
  2. Step 2: Convert to fraction form
    64,672,939.20/97,009,408.80 = 26,314,708.80/x
  3. Step 3: Cross multiply
    64,672,939.20x = 97,009,408.80 × 26,314,708.80
  4. Step 4: Simplify right side
    64,672,939.20x = 2,552,774,343,432,157.50
  5. Step 5: Solve for x
    x = 2,552,774,343,432,157.50/64,672,939.20
  6. Step 6: Final answer
    x = 39,472,063.20

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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.