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Finding the Fourth Proportional to 98,657.99, 148,011.28 and 28,544.39

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Solution

The fourth proportional to 98,657.99, 148,011.28 and 28,544.39 is: 42,823.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,657.99 : 148,011.28 = 28,544.39 : x
  2. Step 2: Convert to fraction form
    98,657.99/148,011.28 = 28,544.39/x
  3. Step 3: Cross multiply
    98,657.99x = 148,011.28 × 28,544.39
  4. Step 4: Simplify right side
    98,657.99x = 4,224,891,700.72
  5. Step 5: Solve for x
    x = 4,224,891,700.72/98,657.99
  6. Step 6: Final answer
    x = 42,823.61

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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.