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Finding the Fourth Proportional to 101,684.44, 140,332.94 and 56,376.64

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Solution

The fourth proportional to 101,684.44, 140,332.94 and 56,376.64 is: 77,804.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,684.44 : 140,332.94 = 56,376.64 : x
  2. Step 2: Convert to fraction form
    101,684.44/140,332.94 = 56,376.64/x
  3. Step 3: Cross multiply
    101,684.44x = 140,332.94 × 56,376.64
  4. Step 4: Simplify right side
    101,684.44x = 7,911,499,743.47
  5. Step 5: Solve for x
    x = 7,911,499,743.47/101,684.44
  6. Step 6: Final answer
    x = 77,804.43

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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.