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Finding the Fourth Proportional to 74,804.66, 103,234.40 and 42,975.62

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Solution

The fourth proportional to 74,804.66, 103,234.40 and 42,975.62 is: 59,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,804.66 : 103,234.40 = 42,975.62 : x
  2. Step 2: Convert to fraction form
    74,804.66/103,234.40 = 42,975.62/x
  3. Step 3: Cross multiply
    74,804.66x = 103,234.40 × 42,975.62
  4. Step 4: Simplify right side
    74,804.66x = 4,436,562,345.33
  5. Step 5: Solve for x
    x = 4,436,562,345.33/74,804.66
  6. Step 6: Final answer
    x = 59,308.64

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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.