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Finding the Fourth Proportional to 248,402.40, 372,661.44 and 70,911.84

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Solution

The fourth proportional to 248,402.40, 372,661.44 and 70,911.84 is: 106,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,402.40 : 372,661.44 = 70,911.84 : x
  2. Step 2: Convert to fraction form
    248,402.40/372,661.44 = 70,911.84/x
  3. Step 3: Cross multiply
    248,402.40x = 372,661.44 × 70,911.84
  4. Step 4: Simplify right side
    248,402.40x = 26,426,108,407.45
  5. Step 5: Solve for x
    x = 26,426,108,407.45/248,402.40
  6. Step 6: Final answer
    x = 106,384.27

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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.