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Finding the Fourth Proportional to 153,876.30, 230,814.45 and 120,698.70

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Solution

The fourth proportional to 153,876.30, 230,814.45 and 120,698.70 is: 181,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,876.30 : 230,814.45 = 120,698.70 : x
  2. Step 2: Convert to fraction form
    153,876.30/230,814.45 = 120,698.70/x
  3. Step 3: Cross multiply
    153,876.30x = 230,814.45 × 120,698.70
  4. Step 4: Simplify right side
    153,876.30x = 27,859,004,056.22
  5. Step 5: Solve for x
    x = 27,859,004,056.22/153,876.30
  6. Step 6: Final answer
    x = 181,048.05

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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.