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Finding the Fourth Proportional to 213,952.78, 295,259.44 and 117,160.72

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Solution

The fourth proportional to 213,952.78, 295,259.44 and 117,160.72 is: 161,684.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,952.78 : 295,259.44 = 117,160.72 : x
  2. Step 2: Convert to fraction form
    213,952.78/295,259.44 = 117,160.72/x
  3. Step 3: Cross multiply
    213,952.78x = 295,259.44 × 117,160.72
  4. Step 4: Simplify right side
    213,952.78x = 34,592,808,577.20
  5. Step 5: Solve for x
    x = 34,592,808,577.20/213,952.78
  6. Step 6: Final answer
    x = 161,684.31

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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.