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Finding the Fourth Proportional to 98,153.78, 147,274.36 and 35,809.70

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Solution

The fourth proportional to 98,153.78, 147,274.36 and 35,809.70 is: 53,730.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,153.78 : 147,274.36 = 35,809.70 : x
  2. Step 2: Convert to fraction form
    98,153.78/147,274.36 = 35,809.70/x
  3. Step 3: Cross multiply
    98,153.78x = 147,274.36 × 35,809.70
  4. Step 4: Simplify right side
    98,153.78x = 5,273,850,649.29
  5. Step 5: Solve for x
    x = 5,273,850,649.29/98,153.78
  6. Step 6: Final answer
    x = 53,730.49

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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.