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Finding the Fourth Proportional to 94,215.60, 130,006.80 and 53,940.24

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Solution

The fourth proportional to 94,215.60, 130,006.80 and 53,940.24 is: 74,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,215.60 : 130,006.80 = 53,940.24 : x
  2. Step 2: Convert to fraction form
    94,215.60/130,006.80 = 53,940.24/x
  3. Step 3: Cross multiply
    94,215.60x = 130,006.80 × 53,940.24
  4. Step 4: Simplify right side
    94,215.60x = 7,012,597,993.63
  5. Step 5: Solve for x
    x = 7,012,597,993.63/94,215.60
  6. Step 6: Final answer
    x = 74,431.39

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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.