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Finding the Fourth Proportional to 368,148.72, 552,223.86 and 101,910

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Solution

The fourth proportional to 368,148.72, 552,223.86 and 101,910 is: 152,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,148.72 : 552,223.86 = 101,910 : x
  2. Step 2: Convert to fraction form
    368,148.72/552,223.86 = 101,910/x
  3. Step 3: Cross multiply
    368,148.72x = 552,223.86 × 101,910
  4. Step 4: Simplify right side
    368,148.72x = 56,277,133,572.60
  5. Step 5: Solve for x
    x = 56,277,133,572.60/368,148.72
  6. Step 6: Final answer
    x = 152,865.22

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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.