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Finding the Fourth Proportional to 117,667.80, 176,501.70 and 105,226.20

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Solution

The fourth proportional to 117,667.80, 176,501.70 and 105,226.20 is: 157,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,667.80 : 176,501.70 = 105,226.20 : x
  2. Step 2: Convert to fraction form
    117,667.80/176,501.70 = 105,226.20/x
  3. Step 3: Cross multiply
    117,667.80x = 176,501.70 × 105,226.20
  4. Step 4: Simplify right side
    117,667.80x = 18,572,603,184.54
  5. Step 5: Solve for x
    x = 18,572,603,184.54/117,667.80
  6. Step 6: Final answer
    x = 157,839.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.