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Finding the Fourth Proportional to 74,967,226.92, 112,459,939.92 and 21,114,538.92

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Solution

The fourth proportional to 74,967,226.92, 112,459,939.92 and 21,114,538.92 is: 31,674,371.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,967,226.92 : 112,459,939.92 = 21,114,538.92 : x
  2. Step 2: Convert to fraction form
    74,967,226.92/112,459,939.92 = 21,114,538.92/x
  3. Step 3: Cross multiply
    74,967,226.92x = 112,459,939.92 × 21,114,538.92
  4. Step 4: Simplify right side
    74,967,226.92x = 2,374,539,778,381,702
  5. Step 5: Solve for x
    x = 2,374,539,778,381,702/74,967,226.92
  6. Step 6: Final answer
    x = 31,674,371.27

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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.