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Finding the Fourth Proportional to 77,329.64, 106,714.88 and 43,795.64

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Solution

The fourth proportional to 77,329.64, 106,714.88 and 43,795.64 is: 60,437.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,329.64 : 106,714.88 = 43,795.64 : x
  2. Step 2: Convert to fraction form
    77,329.64/106,714.88 = 43,795.64/x
  3. Step 3: Cross multiply
    77,329.64x = 106,714.88 × 43,795.64
  4. Step 4: Simplify right side
    77,329.64x = 4,673,646,467.12
  5. Step 5: Solve for x
    x = 4,673,646,467.12/77,329.64
  6. Step 6: Final answer
    x = 60,437.97

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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.