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Finding the Fourth Proportional to 127,758.49, 176,212.29 and 93,755.50

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Solution

The fourth proportional to 127,758.49, 176,212.29 and 93,755.50 is: 129,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,758.49 : 176,212.29 = 93,755.50 : x
  2. Step 2: Convert to fraction form
    127,758.49/176,212.29 = 93,755.50/x
  3. Step 3: Cross multiply
    127,758.49x = 176,212.29 × 93,755.50
  4. Step 4: Simplify right side
    127,758.49x = 16,520,871,355.10
  5. Step 5: Solve for x
    x = 16,520,871,355.10/127,758.49
  6. Step 6: Final answer
    x = 129,313.30

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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.