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Finding the Fourth Proportional to 74,325.60, 111,502.80 and 37,389.60

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Solution

The fourth proportional to 74,325.60, 111,502.80 and 37,389.60 is: 56,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,325.60 : 111,502.80 = 37,389.60 : x
  2. Step 2: Convert to fraction form
    74,325.60/111,502.80 = 37,389.60/x
  3. Step 3: Cross multiply
    74,325.60x = 111,502.80 × 37,389.60
  4. Step 4: Simplify right side
    74,325.60x = 4,169,045,090.88
  5. Step 5: Solve for x
    x = 4,169,045,090.88/74,325.60
  6. Step 6: Final answer
    x = 56,091.64

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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.