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Finding the Fourth Proportional to 98,341.63, 147,490.56 and 38,371.68

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Solution

The fourth proportional to 98,341.63, 147,490.56 and 38,371.68 is: 57,548.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,341.63 : 147,490.56 = 38,371.68 : x
  2. Step 2: Convert to fraction form
    98,341.63/147,490.56 = 38,371.68/x
  3. Step 3: Cross multiply
    98,341.63x = 147,490.56 × 38,371.68
  4. Step 4: Simplify right side
    98,341.63x = 5,659,460,571.34
  5. Step 5: Solve for x
    x = 5,659,460,571.34/98,341.63
  6. Step 6: Final answer
    x = 57,548.98

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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.