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Finding the Fourth Proportional to 64,674,917.80, 97,012,376.70 and 32,331,812.20

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Solution

The fourth proportional to 64,674,917.80, 97,012,376.70 and 32,331,812.20 is: 48,497,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,674,917.80 : 97,012,376.70 = 32,331,812.20 : x
  2. Step 2: Convert to fraction form
    64,674,917.80/97,012,376.70 = 32,331,812.20/x
  3. Step 3: Cross multiply
    64,674,917.80x = 97,012,376.70 × 32,331,812.20
  4. Step 4: Simplify right side
    64,674,917.80x = 3,136,585,944,540,056
  5. Step 5: Solve for x
    x = 3,136,585,944,540,056/64,674,917.80
  6. Step 6: Final answer
    x = 48,497,718.30

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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.