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Finding the Fourth Proportional to 229,647.68, 316,913.36 and 127,682.55

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Solution

The fourth proportional to 229,647.68, 316,913.36 and 127,682.55 is: 176,201.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,647.68 : 316,913.36 = 127,682.55 : x
  2. Step 2: Convert to fraction form
    229,647.68/316,913.36 = 127,682.55/x
  3. Step 3: Cross multiply
    229,647.68x = 316,913.36 × 127,682.55
  4. Step 4: Simplify right side
    229,647.68x = 40,464,305,295.46
  5. Step 5: Solve for x
    x = 40,464,305,295.46/229,647.68
  6. Step 6: Final answer
    x = 176,201.68

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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.