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Finding the Fourth Proportional to 229,317.55, 316,447.56 and 127,349.48

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Solution

The fourth proportional to 229,317.55, 316,447.56 and 127,349.48 is: 175,736.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,317.55 : 316,447.56 = 127,349.48 : x
  2. Step 2: Convert to fraction form
    229,317.55/316,447.56 = 127,349.48/x
  3. Step 3: Cross multiply
    229,317.55x = 316,447.56 × 127,349.48
  4. Step 4: Simplify right side
    229,317.55x = 40,299,433,004.39
  5. Step 5: Solve for x
    x = 40,299,433,004.39/229,317.55
  6. Step 6: Final answer
    x = 175,736.37

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1.5x scale

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.