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Finding the Fourth Proportional to 248,632.42, 372,782.53 and 77,796.28

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Solution

The fourth proportional to 248,632.42, 372,782.53 and 77,796.28 is: 116,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,632.42 : 372,782.53 = 77,796.28 : x
  2. Step 2: Convert to fraction form
    248,632.42/372,782.53 = 77,796.28/x
  3. Step 3: Cross multiply
    248,632.42x = 372,782.53 × 77,796.28
  4. Step 4: Simplify right side
    248,632.42x = 29,001,094,427.41
  5. Step 5: Solve for x
    x = 29,001,094,427.41/248,632.42
  6. Step 6: Final answer
    x = 116,642.45

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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.