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Finding the Fourth Proportional to 228,326.08, 315,090.88 and 127,724.16

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Solution

The fourth proportional to 228,326.08, 315,090.88 and 127,724.16 is: 176,259.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,326.08 : 315,090.88 = 127,724.16 : x
  2. Step 2: Convert to fraction form
    228,326.08/315,090.88 = 127,724.16/x
  3. Step 3: Cross multiply
    228,326.08x = 315,090.88 × 127,724.16
  4. Step 4: Simplify right side
    228,326.08x = 40,244,717,971.66
  5. Step 5: Solve for x
    x = 40,244,717,971.66/228,326.08
  6. Step 6: Final answer
    x = 176,259.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.