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Finding the Fourth Proportional to 371,889.12, 557,870.58 and 119,106.12

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Solution

The fourth proportional to 371,889.12, 557,870.58 and 119,106.12 is: 178,671.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,889.12 : 557,870.58 = 119,106.12 : x
  2. Step 2: Convert to fraction form
    371,889.12/557,870.58 = 119,106.12/x
  3. Step 3: Cross multiply
    371,889.12x = 557,870.58 × 119,106.12
  4. Step 4: Simplify right side
    371,889.12x = 66,445,800,245.95
  5. Step 5: Solve for x
    x = 66,445,800,245.95/371,889.12
  6. Step 6: Final answer
    x = 178,671.00

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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.