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Finding the Fourth Proportional to 64,778.90, 97,049.98 and 46,965.40

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Solution

The fourth proportional to 64,778.90, 97,049.98 and 46,965.40 is: 70,362.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,778.90 : 97,049.98 = 46,965.40 : x
  2. Step 2: Convert to fraction form
    64,778.90/97,049.98 = 46,965.40/x
  3. Step 3: Cross multiply
    64,778.90x = 97,049.98 × 46,965.40
  4. Step 4: Simplify right side
    64,778.90x = 4,557,991,130.69
  5. Step 5: Solve for x
    x = 4,557,991,130.69/64,778.90
  6. Step 6: Final answer
    x = 70,362.28

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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.