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Finding the Fourth Proportional to 213,813.79, 295,042.95 and 127,755.64

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Solution

The fourth proportional to 213,813.79, 295,042.95 and 127,755.64 is: 176,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,813.79 : 295,042.95 = 127,755.64 : x
  2. Step 2: Convert to fraction form
    213,813.79/295,042.95 = 127,755.64/x
  3. Step 3: Cross multiply
    213,813.79x = 295,042.95 × 127,755.64
  4. Step 4: Simplify right side
    213,813.79x = 37,693,400,904.74
  5. Step 5: Solve for x
    x = 37,693,400,904.74/213,813.79
  6. Step 6: Final answer
    x = 176,290.79

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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.