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Finding the Fourth Proportional to 98,483.68, 147,725.52 and 45,929.92

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Solution

The fourth proportional to 98,483.68, 147,725.52 and 45,929.92 is: 68,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,483.68 : 147,725.52 = 45,929.92 : x
  2. Step 2: Convert to fraction form
    98,483.68/147,725.52 = 45,929.92/x
  3. Step 3: Cross multiply
    98,483.68x = 147,725.52 × 45,929.92
  4. Step 4: Simplify right side
    98,483.68x = 6,785,021,315.56
  5. Step 5: Solve for x
    x = 6,785,021,315.56/98,483.68
  6. Step 6: Final answer
    x = 68,894.88

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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.