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Finding the Fourth Proportional to 370,187.31, 555,314.85 and 103,946.03

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Solution

The fourth proportional to 370,187.31, 555,314.85 and 103,946.03 is: 155,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,187.31 : 555,314.85 = 103,946.03 : x
  2. Step 2: Convert to fraction form
    370,187.31/555,314.85 = 103,946.03/x
  3. Step 3: Cross multiply
    370,187.31x = 555,314.85 × 103,946.03
  4. Step 4: Simplify right side
    370,187.31x = 57,722,774,057.55
  5. Step 5: Solve for x
    x = 57,722,774,057.55/370,187.31
  6. Step 6: Final answer
    x = 155,928.56

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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.