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Finding the Fourth Proportional to 54,124.02, 74,712.02 and 48,448.71

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Solution

The fourth proportional to 54,124.02, 74,712.02 and 48,448.71 is: 66,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,124.02 : 74,712.02 = 48,448.71 : x
  2. Step 2: Convert to fraction form
    54,124.02/74,712.02 = 48,448.71/x
  3. Step 3: Cross multiply
    54,124.02x = 74,712.02 × 48,448.71
  4. Step 4: Simplify right side
    54,124.02x = 3,619,700,748.25
  5. Step 5: Solve for x
    x = 3,619,700,748.25/54,124.02
  6. Step 6: Final answer
    x = 66,877.90

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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.