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Finding the Fourth Proportional to 124,643.64, 186,921.72 and 35,873.28

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Solution

The fourth proportional to 124,643.64, 186,921.72 and 35,873.28 is: 53,797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,643.64 : 186,921.72 = 35,873.28 : x
  2. Step 2: Convert to fraction form
    124,643.64/186,921.72 = 35,873.28/x
  3. Step 3: Cross multiply
    124,643.64x = 186,921.72 × 35,873.28
  4. Step 4: Simplify right side
    124,643.64x = 6,705,495,199.64
  5. Step 5: Solve for x
    x = 6,705,495,199.64/124,643.64
  6. Step 6: Final answer
    x = 53,797.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.