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Finding the Fourth Proportional to 98,392.50, 135,792.10 and 60,174.40

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Solution

The fourth proportional to 98,392.50, 135,792.10 and 60,174.40 is: 83,047.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,392.50 : 135,792.10 = 60,174.40 : x
  2. Step 2: Convert to fraction form
    98,392.50/135,792.10 = 60,174.40/x
  3. Step 3: Cross multiply
    98,392.50x = 135,792.10 × 60,174.40
  4. Step 4: Simplify right side
    98,392.50x = 8,171,208,142.24
  5. Step 5: Solve for x
    x = 8,171,208,142.24/98,392.50
  6. Step 6: Final answer
    x = 83,047.06

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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.