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Finding the Fourth Proportional to 74,457.44, 102,751.60 and 40,925.60

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Solution

The fourth proportional to 74,457.44, 102,751.60 and 40,925.60 is: 56,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,457.44 : 102,751.60 = 40,925.60 : x
  2. Step 2: Convert to fraction form
    74,457.44/102,751.60 = 40,925.60/x
  3. Step 3: Cross multiply
    74,457.44x = 102,751.60 × 40,925.60
  4. Step 4: Simplify right side
    74,457.44x = 4,205,170,880.96
  5. Step 5: Solve for x
    x = 4,205,170,880.96/74,457.44
  6. Step 6: Final answer
    x = 56,477.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.