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Finding the Fourth Proportional to 74,740.98, 103,134.42 and 46,055.64

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Solution

The fourth proportional to 74,740.98, 103,134.42 and 46,055.64 is: 63,551.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,740.98 : 103,134.42 = 46,055.64 : x
  2. Step 2: Convert to fraction form
    74,740.98/103,134.42 = 46,055.64/x
  3. Step 3: Cross multiply
    74,740.98x = 103,134.42 × 46,055.64
  4. Step 4: Simplify right side
    74,740.98x = 4,749,921,719.13
  5. Step 5: Solve for x
    x = 4,749,921,719.13/74,740.98
  6. Step 6: Final answer
    x = 63,551.77

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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.