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Finding the Fourth Proportional to 64,907, 97,498.74 and 61,114.92

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Solution

The fourth proportional to 64,907, 97,498.74 and 61,114.92 is: 91,802.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,907 : 97,498.74 = 61,114.92 : x
  2. Step 2: Convert to fraction form
    64,907/97,498.74 = 61,114.92/x
  3. Step 3: Cross multiply
    64,907x = 97,498.74 × 61,114.92
  4. Step 4: Simplify right side
    64,907x = 5,958,627,695.20
  5. Step 5: Solve for x
    x = 5,958,627,695.20/64,907
  6. Step 6: Final answer
    x = 91,802.54

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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.