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Finding the Fourth Proportional to 316,908.70, 475,363.05 and 130,054.30

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Solution

The fourth proportional to 316,908.70, 475,363.05 and 130,054.30 is: 195,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,908.70 : 475,363.05 = 130,054.30 : x
  2. Step 2: Convert to fraction form
    316,908.70/475,363.05 = 130,054.30/x
  3. Step 3: Cross multiply
    316,908.70x = 475,363.05 × 130,054.30
  4. Step 4: Simplify right side
    316,908.70x = 61,823,008,713.62
  5. Step 5: Solve for x
    x = 61,823,008,713.62/316,908.70
  6. Step 6: Final answer
    x = 195,081.45

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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.