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Finding the Fourth Proportional to 213,141.74, 294,135.63 and 117,648.47

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Solution

The fourth proportional to 213,141.74, 294,135.63 and 117,648.47 is: 162,354.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,141.74 : 294,135.63 = 117,648.47 : x
  2. Step 2: Convert to fraction form
    213,141.74/294,135.63 = 117,648.47/x
  3. Step 3: Cross multiply
    213,141.74x = 294,135.63 × 117,648.47
  4. Step 4: Simplify right side
    213,141.74x = 34,604,606,841.99
  5. Step 5: Solve for x
    x = 34,604,606,841.99/213,141.74
  6. Step 6: Final answer
    x = 162,354.90

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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.