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Finding the Fourth Proportional to 113,783.50, 157,020.12 and 62,796.70

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Solution

The fourth proportional to 113,783.50, 157,020.12 and 62,796.70 is: 86,658.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,783.50 : 157,020.12 = 62,796.70 : x
  2. Step 2: Convert to fraction form
    113,783.50/157,020.12 = 62,796.70/x
  3. Step 3: Cross multiply
    113,783.50x = 157,020.12 × 62,796.70
  4. Step 4: Simplify right side
    113,783.50x = 9,860,345,369.60
  5. Step 5: Solve for x
    x = 9,860,345,369.60/113,783.50
  6. Step 6: Final answer
    x = 86,658.83

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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.