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Finding the Fourth Proportional to 371,099.80, 556,649.70 and 134,450.20

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Solution

The fourth proportional to 371,099.80, 556,649.70 and 134,450.20 is: 201,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,099.80 : 556,649.70 = 134,450.20 : x
  2. Step 2: Convert to fraction form
    371,099.80/556,649.70 = 134,450.20/x
  3. Step 3: Cross multiply
    371,099.80x = 556,649.70 × 134,450.20
  4. Step 4: Simplify right side
    371,099.80x = 74,841,663,494.94
  5. Step 5: Solve for x
    x = 74,841,663,494.94/371,099.80
  6. Step 6: Final answer
    x = 201,675.30

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1.5x scale

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.