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Finding the Fourth Proportional to 341,675.76, 512,562.60 and 105,038.28

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Solution

The fourth proportional to 341,675.76, 512,562.60 and 105,038.28 is: 157,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,675.76 : 512,562.60 = 105,038.28 : x
  2. Step 2: Convert to fraction form
    341,675.76/512,562.60 = 105,038.28/x
  3. Step 3: Cross multiply
    341,675.76x = 512,562.60 × 105,038.28
  4. Step 4: Simplify right side
    341,675.76x = 53,838,693,896.33
  5. Step 5: Solve for x
    x = 53,838,693,896.33/341,675.76
  6. Step 6: Final answer
    x = 157,572.47

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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.