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Finding the Fourth Proportional to 229,054.94, 316,085.15 and 127,079.31

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Solution

The fourth proportional to 229,054.94, 316,085.15 and 127,079.31 is: 175,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,054.94 : 316,085.15 = 127,079.31 : x
  2. Step 2: Convert to fraction form
    229,054.94/316,085.15 = 127,079.31/x
  3. Step 3: Cross multiply
    229,054.94x = 316,085.15 × 127,079.31
  4. Step 4: Simplify right side
    229,054.94x = 40,167,884,266.26
  5. Step 5: Solve for x
    x = 40,167,884,266.26/229,054.94
  6. Step 6: Final answer
    x = 175,363.54

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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.