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Finding the Fourth Proportional to 402,375.36, 603,656.46 and 118,054.43

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Solution

The fourth proportional to 402,375.36, 603,656.46 and 118,054.43 is: 177,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,375.36 : 603,656.46 = 118,054.43 : x
  2. Step 2: Convert to fraction form
    402,375.36/603,656.46 = 118,054.43/x
  3. Step 3: Cross multiply
    402,375.36x = 603,656.46 × 118,054.43
  4. Step 4: Simplify right side
    402,375.36x = 71,264,316,282.84
  5. Step 5: Solve for x
    x = 71,264,316,282.84/402,375.36
  6. Step 6: Final answer
    x = 177,109.05

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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.