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Finding the Fourth Proportional to 74,000.40, 111,000.60 and 49,068.60

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Solution

The fourth proportional to 74,000.40, 111,000.60 and 49,068.60 is: 73,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,000.40 : 111,000.60 = 49,068.60 : x
  2. Step 2: Convert to fraction form
    74,000.40/111,000.60 = 49,068.60/x
  3. Step 3: Cross multiply
    74,000.40x = 111,000.60 × 49,068.60
  4. Step 4: Simplify right side
    74,000.40x = 5,446,644,041.16
  5. Step 5: Solve for x
    x = 5,446,644,041.16/74,000.40
  6. Step 6: Final answer
    x = 73,602.90

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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.