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Finding the Fourth Proportional to 371,338.48, 556,980.18 and 118,608.76

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Solution

The fourth proportional to 371,338.48, 556,980.18 and 118,608.76 is: 177,904.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,338.48 : 556,980.18 = 118,608.76 : x
  2. Step 2: Convert to fraction form
    371,338.48/556,980.18 = 118,608.76/x
  3. Step 3: Cross multiply
    371,338.48x = 556,980.18 × 118,608.76
  4. Step 4: Simplify right side
    371,338.48x = 66,062,728,494.38
  5. Step 5: Solve for x
    x = 66,062,728,494.38/371,338.48
  6. Step 6: Final answer
    x = 177,904.34

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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.