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Finding the Fourth Proportional to 73,155.54, 109,740.62 and 19,848.36

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Solution

The fourth proportional to 73,155.54, 109,740.62 and 19,848.36 is: 29,774.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,155.54 : 109,740.62 = 19,848.36 : x
  2. Step 2: Convert to fraction form
    73,155.54/109,740.62 = 19,848.36/x
  3. Step 3: Cross multiply
    73,155.54x = 109,740.62 × 19,848.36
  4. Step 4: Simplify right side
    73,155.54x = 2,178,171,332.38
  5. Step 5: Solve for x
    x = 2,178,171,332.38/73,155.54
  6. Step 6: Final answer
    x = 29,774.52

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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.