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Finding the Fourth Proportional to 64,146.80, 96,317.40 and 49,372.40

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Solution

The fourth proportional to 64,146.80, 96,317.40 and 49,372.40 is: 74,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,146.80 : 96,317.40 = 49,372.40 : x
  2. Step 2: Convert to fraction form
    64,146.80/96,317.40 = 49,372.40/x
  3. Step 3: Cross multiply
    64,146.80x = 96,317.40 × 49,372.40
  4. Step 4: Simplify right side
    64,146.80x = 4,755,421,199.76
  5. Step 5: Solve for x
    x = 4,755,421,199.76/64,146.80
  6. Step 6: Final answer
    x = 74,133.41

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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.