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Finding the Fourth Proportional to 96,648, 133,374.48 and 56,389.44

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Solution

The fourth proportional to 96,648, 133,374.48 and 56,389.44 is: 77,817.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,648 : 133,374.48 = 56,389.44 : x
  2. Step 2: Convert to fraction form
    96,648/133,374.48 = 56,389.44/x
  3. Step 3: Cross multiply
    96,648x = 133,374.48 × 56,389.44
  4. Step 4: Simplify right side
    96,648x = 7,520,912,237.49
  5. Step 5: Solve for x
    x = 7,520,912,237.49/96,648
  6. Step 6: Final answer
    x = 77,817.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.