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Finding the Fourth Proportional to 292,301.79, 403,410.51 and 243,156.60

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Solution

The fourth proportional to 292,301.79, 403,410.51 and 243,156.60 is: 335,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,301.79 : 403,410.51 = 243,156.60 : x
  2. Step 2: Convert to fraction form
    292,301.79/403,410.51 = 243,156.60/x
  3. Step 3: Cross multiply
    292,301.79x = 403,410.51 × 243,156.60
  4. Step 4: Simplify right side
    292,301.79x = 98,091,928,015.87
  5. Step 5: Solve for x
    x = 98,091,928,015.87/292,301.79
  6. Step 6: Final answer
    x = 335,584.42

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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.