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Finding the Fourth Proportional to 104,020.88, 143,548.88 and 56,274.08

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Solution

The fourth proportional to 104,020.88, 143,548.88 and 56,274.08 is: 77,658.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,020.88 : 143,548.88 = 56,274.08 : x
  2. Step 2: Convert to fraction form
    104,020.88/143,548.88 = 56,274.08/x
  3. Step 3: Cross multiply
    104,020.88x = 143,548.88 × 56,274.08
  4. Step 4: Simplify right side
    104,020.88x = 8,078,081,157.03
  5. Step 5: Solve for x
    x = 8,078,081,157.03/104,020.88
  6. Step 6: Final answer
    x = 77,658.27

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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.