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Finding the Fourth Proportional to 266,948.48, 368,388.92 and 146,089.76

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Solution

The fourth proportional to 266,948.48, 368,388.92 and 146,089.76 is: 201,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,948.48 : 368,388.92 = 146,089.76 : x
  2. Step 2: Convert to fraction form
    266,948.48/368,388.92 = 146,089.76/x
  3. Step 3: Cross multiply
    266,948.48x = 368,388.92 × 146,089.76
  4. Step 4: Simplify right side
    266,948.48x = 53,817,848,909.46
  5. Step 5: Solve for x
    x = 53,817,848,909.46/266,948.48
  6. Step 6: Final answer
    x = 201,603.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.