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Finding the Fourth Proportional to 365,415.54, 548,117.25 and 109,248.71

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Solution

The fourth proportional to 365,415.54, 548,117.25 and 109,248.71 is: 163,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,415.54 : 548,117.25 = 109,248.71 : x
  2. Step 2: Convert to fraction form
    365,415.54/548,117.25 = 109,248.71/x
  3. Step 3: Cross multiply
    365,415.54x = 548,117.25 × 109,248.71
  4. Step 4: Simplify right side
    365,415.54x = 59,881,099,750.66
  5. Step 5: Solve for x
    x = 59,881,099,750.66/365,415.54
  6. Step 6: Final answer
    x = 163,871.25

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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.