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Finding the Fourth Proportional to 101,662.83, 140,295.51 and 56,341.56

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Solution

The fourth proportional to 101,662.83, 140,295.51 and 56,341.56 is: 77,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,662.83 : 140,295.51 = 56,341.56 : x
  2. Step 2: Convert to fraction form
    101,662.83/140,295.51 = 56,341.56/x
  3. Step 3: Cross multiply
    101,662.83x = 140,295.51 × 56,341.56
  4. Step 4: Simplify right side
    101,662.83x = 7,904,467,894.40
  5. Step 5: Solve for x
    x = 7,904,467,894.40/101,662.83
  6. Step 6: Final answer
    x = 77,751.80

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1.5x scale

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.