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Finding the Fourth Proportional to 131,714.75, 197,603.45 and 42,968.32

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Solution

The fourth proportional to 131,714.75, 197,603.45 and 42,968.32 is: 64,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,714.75 : 197,603.45 = 42,968.32 : x
  2. Step 2: Convert to fraction form
    131,714.75/197,603.45 = 42,968.32/x
  3. Step 3: Cross multiply
    131,714.75x = 197,603.45 × 42,968.32
  4. Step 4: Simplify right side
    131,714.75x = 8,490,688,272.70
  5. Step 5: Solve for x
    x = 8,490,688,272.70/131,714.75
  6. Step 6: Final answer
    x = 64,462.70

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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.