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Finding the Fourth Proportional to 79,907.80, 119,904.90 and 35,541.40

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Solution

The fourth proportional to 79,907.80, 119,904.90 and 35,541.40 is: 53,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,907.80 : 119,904.90 = 35,541.40 : x
  2. Step 2: Convert to fraction form
    79,907.80/119,904.90 = 35,541.40/x
  3. Step 3: Cross multiply
    79,907.80x = 119,904.90 × 35,541.40
  4. Step 4: Simplify right side
    79,907.80x = 4,261,588,012.86
  5. Step 5: Solve for x
    x = 4,261,588,012.86/79,907.80
  6. Step 6: Final answer
    x = 53,331.31

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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.