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Finding the Fourth Proportional to 101,843.16, 140,539.40 and 56,523.04

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Solution

The fourth proportional to 101,843.16, 140,539.40 and 56,523.04 is: 77,999.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,843.16 : 140,539.40 = 56,523.04 : x
  2. Step 2: Convert to fraction form
    101,843.16/140,539.40 = 56,523.04/x
  3. Step 3: Cross multiply
    101,843.16x = 140,539.40 × 56,523.04
  4. Step 4: Simplify right side
    101,843.16x = 7,943,714,127.78
  5. Step 5: Solve for x
    x = 7,943,714,127.78/101,843.16
  6. Step 6: Final answer
    x = 77,999.49

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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.