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Finding the Fourth Proportional to 159,308.28, 238,962.96 and 46,989.90

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Solution

The fourth proportional to 159,308.28, 238,962.96 and 46,989.90 is: 70,485.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,308.28 : 238,962.96 = 46,989.90 : x
  2. Step 2: Convert to fraction form
    159,308.28/238,962.96 = 46,989.90/x
  3. Step 3: Cross multiply
    159,308.28x = 238,962.96 × 46,989.90
  4. Step 4: Simplify right side
    159,308.28x = 11,228,845,594.10
  5. Step 5: Solve for x
    x = 11,228,845,594.10/159,308.28
  6. Step 6: Final answer
    x = 70,485.01

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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.