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Finding the Fourth Proportional to 98,563.44, 147,955.79 and 39,440.32

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Solution

The fourth proportional to 98,563.44, 147,955.79 and 39,440.32 is: 59,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,563.44 : 147,955.79 = 39,440.32 : x
  2. Step 2: Convert to fraction form
    98,563.44/147,955.79 = 39,440.32/x
  3. Step 3: Cross multiply
    98,563.44x = 147,955.79 × 39,440.32
  4. Step 4: Simplify right side
    98,563.44x = 5,835,423,703.45
  5. Step 5: Solve for x
    x = 5,835,423,703.45/98,563.44
  6. Step 6: Final answer
    x = 59,204.75

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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.