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Finding the Fourth Proportional to 213,141.99, 294,135.98 and 117,648.72

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Solution

The fourth proportional to 213,141.99, 294,135.98 and 117,648.72 is: 162,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,141.99 : 294,135.98 = 117,648.72 : x
  2. Step 2: Convert to fraction form
    213,141.99/294,135.98 = 117,648.72/x
  3. Step 3: Cross multiply
    213,141.99x = 294,135.98 × 117,648.72
  4. Step 4: Simplify right side
    213,141.99x = 34,604,721,552.95
  5. Step 5: Solve for x
    x = 34,604,721,552.95/213,141.99
  6. Step 6: Final answer
    x = 162,355.25

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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.