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Finding the Fourth Proportional to 98,591.54, 136,061.22 and 58,328.86

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Solution

The fourth proportional to 98,591.54, 136,061.22 and 58,328.86 is: 80,496.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,591.54 : 136,061.22 = 58,328.86 : x
  2. Step 2: Convert to fraction form
    98,591.54/136,061.22 = 58,328.86/x
  3. Step 3: Cross multiply
    98,591.54x = 136,061.22 × 58,328.86
  4. Step 4: Simplify right side
    98,591.54x = 7,936,295,852.81
  5. Step 5: Solve for x
    x = 7,936,295,852.81/98,591.54
  6. Step 6: Final answer
    x = 80,496.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.