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Finding the Fourth Proportional to 98,573.56, 147,816.60 and 61,132.12

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Solution

The fourth proportional to 98,573.56, 147,816.60 and 61,132.12 is: 91,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,573.56 : 147,816.60 = 61,132.12 : x
  2. Step 2: Convert to fraction form
    98,573.56/147,816.60 = 61,132.12/x
  3. Step 3: Cross multiply
    98,573.56x = 147,816.60 × 61,132.12
  4. Step 4: Simplify right side
    98,573.56x = 9,036,341,530.41
  5. Step 5: Solve for x
    x = 9,036,341,530.41/98,573.56
  6. Step 6: Final answer
    x = 91,671.05

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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.