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Finding the Fourth Proportional to 123,287.13, 184,928.67 and 39,047.16

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Solution

The fourth proportional to 123,287.13, 184,928.67 and 39,047.16 is: 58,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,287.13 : 184,928.67 = 39,047.16 : x
  2. Step 2: Convert to fraction form
    123,287.13/184,928.67 = 39,047.16/x
  3. Step 3: Cross multiply
    123,287.13x = 184,928.67 × 39,047.16
  4. Step 4: Simplify right side
    123,287.13x = 7,220,939,366.08
  5. Step 5: Solve for x
    x = 7,220,939,366.08/123,287.13
  6. Step 6: Final answer
    x = 58,570.10

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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.