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Finding the Fourth Proportional to 248,390.32, 372,588.92 and 70,897.28

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Solution

The fourth proportional to 248,390.32, 372,588.92 and 70,897.28 is: 106,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,390.32 : 372,588.92 = 70,897.28 : x
  2. Step 2: Convert to fraction form
    248,390.32/372,588.92 = 70,897.28/x
  3. Step 3: Cross multiply
    248,390.32x = 372,588.92 × 70,897.28
  4. Step 4: Simplify right side
    248,390.32x = 26,415,540,986.14
  5. Step 5: Solve for x
    x = 26,415,540,986.14/248,390.32
  6. Step 6: Final answer
    x = 106,346.90

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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.