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Finding the Fourth Proportional to 98,400.56, 148,258.98 and 89,050.48

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Solution

The fourth proportional to 98,400.56, 148,258.98 and 89,050.48 is: 134,171.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,400.56 : 148,258.98 = 89,050.48 : x
  2. Step 2: Convert to fraction form
    98,400.56/148,258.98 = 89,050.48/x
  3. Step 3: Cross multiply
    98,400.56x = 148,258.98 × 89,050.48
  4. Step 4: Simplify right side
    98,400.56x = 13,202,533,333.31
  5. Step 5: Solve for x
    x = 13,202,533,333.31/98,400.56
  6. Step 6: Final answer
    x = 134,171.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.