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Finding the Fourth Proportional to 64,697,791.68, 97,014,235.68 and 21,551,826.24

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Solution

The fourth proportional to 64,697,791.68, 97,014,235.68 and 21,551,826.24 is: 32,316,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,697,791.68 : 97,014,235.68 = 21,551,826.24 : x
  2. Step 2: Convert to fraction form
    64,697,791.68/97,014,235.68 = 21,551,826.24/x
  3. Step 3: Cross multiply
    64,697,791.68x = 97,014,235.68 × 21,551,826.24
  4. Step 4: Simplify right side
    64,697,791.68x = 2,090,833,950,181,768.25
  5. Step 5: Solve for x
    x = 2,090,833,950,181,768.25/64,697,791.68
  6. Step 6: Final answer
    x = 32,316,929.15

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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.