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Finding the Fourth Proportional to 158,533.52, 218,798.60 and 98,123.60

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Solution

The fourth proportional to 158,533.52, 218,798.60 and 98,123.60 is: 135,424.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,533.52 : 218,798.60 = 98,123.60 : x
  2. Step 2: Convert to fraction form
    158,533.52/218,798.60 = 98,123.60/x
  3. Step 3: Cross multiply
    158,533.52x = 218,798.60 × 98,123.60
  4. Step 4: Simplify right side
    158,533.52x = 21,469,306,306.96
  5. Step 5: Solve for x
    x = 21,469,306,306.96/158,533.52
  6. Step 6: Final answer
    x = 135,424.40

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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.