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Finding the Fourth Proportional to 98,635.51, 147,990.51 and 59,220.10

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Solution

The fourth proportional to 98,635.51, 147,990.51 and 59,220.10 is: 88,852.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,635.51 : 147,990.51 = 59,220.10 : x
  2. Step 2: Convert to fraction form
    98,635.51/147,990.51 = 59,220.10/x
  3. Step 3: Cross multiply
    98,635.51x = 147,990.51 × 59,220.10
  4. Step 4: Simplify right side
    98,635.51x = 8,764,012,801.25
  5. Step 5: Solve for x
    x = 8,764,012,801.25/98,635.51
  6. Step 6: Final answer
    x = 88,852.51

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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.