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Finding the Fourth Proportional to 347,371.28, 521,056.90 and 98,053.28

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Solution

The fourth proportional to 347,371.28, 521,056.90 and 98,053.28 is: 147,079.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,371.28 : 521,056.90 = 98,053.28 : x
  2. Step 2: Convert to fraction form
    347,371.28/521,056.90 = 98,053.28/x
  3. Step 3: Cross multiply
    347,371.28x = 521,056.90 × 98,053.28
  4. Step 4: Simplify right side
    347,371.28x = 51,091,338,111.63
  5. Step 5: Solve for x
    x = 51,091,338,111.63/347,371.28
  6. Step 6: Final answer
    x = 147,079.91

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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.