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Finding the Fourth Proportional to 156,767.75, 216,341.82 and 88,783.03

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Solution

The fourth proportional to 156,767.75, 216,341.82 and 88,783.03 is: 122,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,767.75 : 216,341.82 = 88,783.03 : x
  2. Step 2: Convert to fraction form
    156,767.75/216,341.82 = 88,783.03/x
  3. Step 3: Cross multiply
    156,767.75x = 216,341.82 × 88,783.03
  4. Step 4: Simplify right side
    156,767.75x = 19,207,482,295.31
  5. Step 5: Solve for x
    x = 19,207,482,295.31/156,767.75
  6. Step 6: Final answer
    x = 122,521.90

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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.