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Finding the Fourth Proportional to 153,337.81, 230,053.77 and 78,510.49

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Solution

The fourth proportional to 153,337.81, 230,053.77 and 78,510.49 is: 117,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,337.81 : 230,053.77 = 78,510.49 : x
  2. Step 2: Convert to fraction form
    153,337.81/230,053.77 = 78,510.49/x
  3. Step 3: Cross multiply
    153,337.81x = 230,053.77 × 78,510.49
  4. Step 4: Simplify right side
    153,337.81x = 18,061,633,633.91
  5. Step 5: Solve for x
    x = 18,061,633,633.91/153,337.81
  6. Step 6: Final answer
    x = 117,789.83

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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.