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Finding the Fourth Proportional to 211,124.66, 291,340.92 and 115,629.32

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Solution

The fourth proportional to 211,124.66, 291,340.92 and 115,629.32 is: 159,562.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,124.66 : 291,340.92 = 115,629.32 : x
  2. Step 2: Convert to fraction form
    211,124.66/291,340.92 = 115,629.32/x
  3. Step 3: Cross multiply
    211,124.66x = 291,340.92 × 115,629.32
  4. Step 4: Simplify right side
    211,124.66x = 33,687,552,467.77
  5. Step 5: Solve for x
    x = 33,687,552,467.77/211,124.66
  6. Step 6: Final answer
    x = 159,562.38

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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.