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Finding the Fourth Proportional to 177,647.45, 245,167.46 and 101,169.78

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Solution

The fourth proportional to 177,647.45, 245,167.46 and 101,169.78 is: 139,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,647.45 : 245,167.46 = 101,169.78 : x
  2. Step 2: Convert to fraction form
    177,647.45/245,167.46 = 101,169.78/x
  3. Step 3: Cross multiply
    177,647.45x = 245,167.46 × 101,169.78
  4. Step 4: Simplify right side
    177,647.45x = 24,803,537,485.51
  5. Step 5: Solve for x
    x = 24,803,537,485.51/177,647.45
  6. Step 6: Final answer
    x = 139,622.25

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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.