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Finding the Fourth Proportional to 177,657.67, 245,166.68 and 105,086.63

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Solution

The fourth proportional to 177,657.67, 245,166.68 and 105,086.63 is: 145,019.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,657.67 : 245,166.68 = 105,086.63 : x
  2. Step 2: Convert to fraction form
    177,657.67/245,166.68 = 105,086.63/x
  3. Step 3: Cross multiply
    177,657.67x = 245,166.68 × 105,086.63
  4. Step 4: Simplify right side
    177,657.67x = 25,763,740,189.49
  5. Step 5: Solve for x
    x = 25,763,740,189.49/177,657.67
  6. Step 6: Final answer
    x = 145,019.01

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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.