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Finding the Fourth Proportional to 245,912.61, 368,670.01 and 103,666.04

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Solution

The fourth proportional to 245,912.61, 368,670.01 and 103,666.04 is: 155,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,912.61 : 368,670.01 = 103,666.04 : x
  2. Step 2: Convert to fraction form
    245,912.61/368,670.01 = 103,666.04/x
  3. Step 3: Cross multiply
    245,912.61x = 368,670.01 × 103,666.04
  4. Step 4: Simplify right side
    245,912.61x = 38,218,560,003.46
  5. Step 5: Solve for x
    x = 38,218,560,003.46/245,912.61
  6. Step 6: Final answer
    x = 155,415.21

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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.