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Finding the Fourth Proportional to 407,340.80, 611,097.60 and 123,041.60

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Solution

The fourth proportional to 407,340.80, 611,097.60 and 123,041.60 is: 184,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,340.80 : 611,097.60 = 123,041.60 : x
  2. Step 2: Convert to fraction form
    407,340.80/611,097.60 = 123,041.60/x
  3. Step 3: Cross multiply
    407,340.80x = 611,097.60 × 123,041.60
  4. Step 4: Simplify right side
    407,340.80x = 75,190,426,460.16
  5. Step 5: Solve for x
    x = 75,190,426,460.16/407,340.80
  6. Step 6: Final answer
    x = 184,588.50

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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.