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Finding the Fourth Proportional to 223,216.48, 307,951.50 and 127,672.12

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Solution

The fourth proportional to 223,216.48, 307,951.50 and 127,672.12 is: 176,137.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,216.48 : 307,951.50 = 127,672.12 : x
  2. Step 2: Convert to fraction form
    223,216.48/307,951.50 = 127,672.12/x
  3. Step 3: Cross multiply
    223,216.48x = 307,951.50 × 127,672.12
  4. Step 4: Simplify right side
    223,216.48x = 39,316,820,862.18
  5. Step 5: Solve for x
    x = 39,316,820,862.18/223,216.48
  6. Step 6: Final answer
    x = 176,137.63

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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.