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Finding the Fourth Proportional to 368,708.82, 553,277.88 and 155,463.36

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Solution

The fourth proportional to 368,708.82, 553,277.88 and 155,463.36 is: 233,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,708.82 : 553,277.88 = 155,463.36 : x
  2. Step 2: Convert to fraction form
    368,708.82/553,277.88 = 155,463.36/x
  3. Step 3: Cross multiply
    368,708.82x = 553,277.88 × 155,463.36
  4. Step 4: Simplify right side
    368,708.82x = 86,014,438,238.48
  5. Step 5: Solve for x
    x = 86,014,438,238.48/368,708.82
  6. Step 6: Final answer
    x = 233,285.55

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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.