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Finding the Fourth Proportional to 54,886.60, 75,742.44 and 31,014.28

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Solution

The fourth proportional to 54,886.60, 75,742.44 and 31,014.28 is: 42,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,886.60 : 75,742.44 = 31,014.28 : x
  2. Step 2: Convert to fraction form
    54,886.60/75,742.44 = 31,014.28/x
  3. Step 3: Cross multiply
    54,886.60x = 75,742.44 × 31,014.28
  4. Step 4: Simplify right side
    54,886.60x = 2,349,097,242.04
  5. Step 5: Solve for x
    x = 2,349,097,242.04/54,886.60
  6. Step 6: Final answer
    x = 42,799.10

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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.