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Finding the Fourth Proportional to 158,909.80, 238,363.98 and 53,801.32

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Solution

The fourth proportional to 158,909.80, 238,363.98 and 53,801.32 is: 80,701.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,909.80 : 238,363.98 = 53,801.32 : x
  2. Step 2: Convert to fraction form
    158,909.80/238,363.98 = 53,801.32/x
  3. Step 3: Cross multiply
    158,909.80x = 238,363.98 × 53,801.32
  4. Step 4: Simplify right side
    158,909.80x = 12,824,296,764.45
  5. Step 5: Solve for x
    x = 12,824,296,764.45/158,909.80
  6. Step 6: Final answer
    x = 80,701.74

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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.