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Finding the Fourth Proportional to 123,762.08, 170,774.16 and 73,481.12

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Solution

The fourth proportional to 123,762.08, 170,774.16 and 73,481.12 is: 101,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,762.08 : 170,774.16 = 73,481.12 : x
  2. Step 2: Convert to fraction form
    123,762.08/170,774.16 = 73,481.12/x
  3. Step 3: Cross multiply
    123,762.08x = 170,774.16 × 73,481.12
  4. Step 4: Simplify right side
    123,762.08x = 12,548,676,543.86
  5. Step 5: Solve for x
    x = 12,548,676,543.86/123,762.08
  6. Step 6: Final answer
    x = 101,393.55

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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.