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Finding the Fourth Proportional to 371,205.72, 556,808.40 and 134,548.02

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Solution

The fourth proportional to 371,205.72, 556,808.40 and 134,548.02 is: 201,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,205.72 : 556,808.40 = 134,548.02 : x
  2. Step 2: Convert to fraction form
    371,205.72/556,808.40 = 134,548.02/x
  3. Step 3: Cross multiply
    371,205.72x = 556,808.40 × 134,548.02
  4. Step 4: Simplify right side
    371,205.72x = 74,917,467,739.37
  5. Step 5: Solve for x
    x = 74,917,467,739.37/371,205.72
  6. Step 6: Final answer
    x = 201,821.96

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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.