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Finding the Fourth Proportional to 74,464.96, 102,762.48 and 40,473.76

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Solution

The fourth proportional to 74,464.96, 102,762.48 and 40,473.76 is: 55,854.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,464.96 : 102,762.48 = 40,473.76 : x
  2. Step 2: Convert to fraction form
    74,464.96/102,762.48 = 40,473.76/x
  3. Step 3: Cross multiply
    74,464.96x = 102,762.48 × 40,473.76
  4. Step 4: Simplify right side
    74,464.96x = 4,159,183,952.52
  5. Step 5: Solve for x
    x = 4,159,183,952.52/74,464.96
  6. Step 6: Final answer
    x = 55,854.24

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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.