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Finding the Fourth Proportional to 213,137.54, 294,129.84 and 117,644.28

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Solution

The fourth proportional to 213,137.54, 294,129.84 and 117,644.28 is: 162,349.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,137.54 : 294,129.84 = 117,644.28 : x
  2. Step 2: Convert to fraction form
    213,137.54/294,129.84 = 117,644.28/x
  3. Step 3: Cross multiply
    213,137.54x = 294,129.84 × 117,644.28
  4. Step 4: Simplify right side
    213,137.54x = 34,602,693,253.32
  5. Step 5: Solve for x
    x = 34,602,693,253.32/213,137.54
  6. Step 6: Final answer
    x = 162,349.13

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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.