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Finding the Fourth Proportional to 159,638.25, 239,457.47 and 48,830.25

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Solution

The fourth proportional to 159,638.25, 239,457.47 and 48,830.25 is: 73,245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,638.25 : 239,457.47 = 48,830.25 : x
  2. Step 2: Convert to fraction form
    159,638.25/239,457.47 = 48,830.25/x
  3. Step 3: Cross multiply
    159,638.25x = 239,457.47 × 48,830.25
  4. Step 4: Simplify right side
    159,638.25x = 11,692,767,880.32
  5. Step 5: Solve for x
    x = 11,692,767,880.32/159,638.25
  6. Step 6: Final answer
    x = 73,245.40

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1.5x scale

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.