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Finding the Fourth Proportional to 196,642.88, 295,062.77 and 90,026.63

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Solution

The fourth proportional to 196,642.88, 295,062.77 and 90,026.63 is: 135,085.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,642.88 : 295,062.77 = 90,026.63 : x
  2. Step 2: Convert to fraction form
    196,642.88/295,062.77 = 90,026.63/x
  3. Step 3: Cross multiply
    196,642.88x = 295,062.77 × 90,026.63
  4. Step 4: Simplify right side
    196,642.88x = 26,563,506,821.57
  5. Step 5: Solve for x
    x = 26,563,506,821.57/196,642.88
  6. Step 6: Final answer
    x = 135,085.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.