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Finding the Fourth Proportional to 98,353.60, 146,970.47 and 73,850.49

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Solution

The fourth proportional to 98,353.60, 146,970.47 and 73,850.49 is: 110,355.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,353.60 : 146,970.47 = 73,850.49 : x
  2. Step 2: Convert to fraction form
    98,353.60/146,970.47 = 73,850.49/x
  3. Step 3: Cross multiply
    98,353.60x = 146,970.47 × 73,850.49
  4. Step 4: Simplify right side
    98,353.60x = 10,853,841,409.66
  5. Step 5: Solve for x
    x = 10,853,841,409.66/98,353.60
  6. Step 6: Final answer
    x = 110,355.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.