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Finding the Fourth Proportional to 610,647.98, 916,011.18 and 161,357.37

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Solution

The fourth proportional to 610,647.98, 916,011.18 and 161,357.37 is: 242,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,647.98 : 916,011.18 = 161,357.37 : x
  2. Step 2: Convert to fraction form
    610,647.98/916,011.18 = 161,357.37/x
  3. Step 3: Cross multiply
    610,647.98x = 916,011.18 × 161,357.37
  4. Step 4: Simplify right side
    610,647.98x = 147,805,151,460.36
  5. Step 5: Solve for x
    x = 147,805,151,460.36/610,647.98
  6. Step 6: Final answer
    x = 242,046.41

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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.