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Finding the Fourth Proportional to 73,163,457.02, 109,734,502.88 and 21,334,132.21

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Solution

The fourth proportional to 73,163,457.02, 109,734,502.88 and 21,334,132.21 is: 31,998,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,163,457.02 : 109,734,502.88 = 21,334,132.21 : x
  2. Step 2: Convert to fraction form
    73,163,457.02/109,734,502.88 = 21,334,132.21/x
  3. Step 3: Cross multiply
    73,163,457.02x = 109,734,502.88 × 21,334,132.21
  4. Step 4: Simplify right side
    73,163,457.02x = 2,341,090,392,219,544.50
  5. Step 5: Solve for x
    x = 2,341,090,392,219,544.50/73,163,457.02
  6. Step 6: Final answer
    x = 31,998,083.30

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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.