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Finding the Fourth Proportional to 248,276.16, 372,415.04 and 61,287.64

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Solution

The fourth proportional to 248,276.16, 372,415.04 and 61,287.64 is: 91,931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,276.16 : 372,415.04 = 61,287.64 : x
  2. Step 2: Convert to fraction form
    248,276.16/372,415.04 = 61,287.64/x
  3. Step 3: Cross multiply
    248,276.16x = 372,415.04 × 61,287.64
  4. Step 4: Simplify right side
    248,276.16x = 22,824,438,902.11
  5. Step 5: Solve for x
    x = 22,824,438,902.11/248,276.16
  6. Step 6: Final answer
    x = 91,931.66

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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.