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Finding the Fourth Proportional to 96,235.45, 144,079.80 and 90,998.80

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Solution

The fourth proportional to 96,235.45, 144,079.80 and 90,998.80 is: 136,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,235.45 : 144,079.80 = 90,998.80 : x
  2. Step 2: Convert to fraction form
    96,235.45/144,079.80 = 90,998.80/x
  3. Step 3: Cross multiply
    96,235.45x = 144,079.80 × 90,998.80
  4. Step 4: Simplify right side
    96,235.45x = 13,111,088,904.24
  5. Step 5: Solve for x
    x = 13,111,088,904.24/96,235.45
  6. Step 6: Final answer
    x = 136,239.70

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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.