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Finding the Fourth Proportional to 93,644.58, 129,218.94 and 55,405.29

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Solution

The fourth proportional to 93,644.58, 129,218.94 and 55,405.29 is: 76,453.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,644.58 : 129,218.94 = 55,405.29 : x
  2. Step 2: Convert to fraction form
    93,644.58/129,218.94 = 55,405.29/x
  3. Step 3: Cross multiply
    93,644.58x = 129,218.94 × 55,405.29
  4. Step 4: Simplify right side
    93,644.58x = 7,159,412,844.19
  5. Step 5: Solve for x
    x = 7,159,412,844.19/93,644.58
  6. Step 6: Final answer
    x = 76,453.04

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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.