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Finding the Fourth Proportional to 129,667.71, 194,501.60 and 40,928.13

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Solution

The fourth proportional to 129,667.71, 194,501.60 and 40,928.13 is: 61,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,667.71 : 194,501.60 = 40,928.13 : x
  2. Step 2: Convert to fraction form
    129,667.71/194,501.60 = 40,928.13/x
  3. Step 3: Cross multiply
    129,667.71x = 194,501.60 × 40,928.13
  4. Step 4: Simplify right side
    129,667.71x = 7,960,586,565.37
  5. Step 5: Solve for x
    x = 7,960,586,565.37/129,667.71
  6. Step 6: Final answer
    x = 61,392.20

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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.