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Finding the Fourth Proportional to 316,232.64, 436,399.72 and 171,038.59

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Solution

The fourth proportional to 316,232.64, 436,399.72 and 171,038.59 is: 236,032.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,232.64 : 436,399.72 = 171,038.59 : x
  2. Step 2: Convert to fraction form
    316,232.64/436,399.72 = 171,038.59/x
  3. Step 3: Cross multiply
    316,232.64x = 436,399.72 × 171,038.59
  4. Step 4: Simplify right side
    316,232.64x = 74,641,191,266.60
  5. Step 5: Solve for x
    x = 74,641,191,266.60/316,232.64
  6. Step 6: Final answer
    x = 236,032.53

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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.