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Finding the Fourth Proportional to 89,262.75, 123,345.60 and 65,021.52

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Solution

The fourth proportional to 89,262.75, 123,345.60 and 65,021.52 is: 89,848.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,262.75 : 123,345.60 = 65,021.52 : x
  2. Step 2: Convert to fraction form
    89,262.75/123,345.60 = 65,021.52/x
  3. Step 3: Cross multiply
    89,262.75x = 123,345.60 × 65,021.52
  4. Step 4: Simplify right side
    89,262.75x = 8,020,118,397.31
  5. Step 5: Solve for x
    x = 8,020,118,397.31/89,262.75
  6. Step 6: Final answer
    x = 89,848.44

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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.