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Finding the Fourth Proportional to 228,755.74, 315,674.33 and 126,782.93

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Solution

The fourth proportional to 228,755.74, 315,674.33 and 126,782.93 is: 174,955.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,755.74 : 315,674.33 = 126,782.93 : x
  2. Step 2: Convert to fraction form
    228,755.74/315,674.33 = 126,782.93/x
  3. Step 3: Cross multiply
    228,755.74x = 315,674.33 × 126,782.93
  4. Step 4: Simplify right side
    228,755.74x = 40,022,116,638.46
  5. Step 5: Solve for x
    x = 40,022,116,638.46/228,755.74
  6. Step 6: Final answer
    x = 174,955.68

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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.