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Finding the Fourth Proportional to 291,127.68, 401,754.40 and 163,804.16

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Solution

The fourth proportional to 291,127.68, 401,754.40 and 163,804.16 is: 226,048.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,127.68 : 401,754.40 = 163,804.16 : x
  2. Step 2: Convert to fraction form
    291,127.68/401,754.40 = 163,804.16/x
  3. Step 3: Cross multiply
    291,127.68x = 401,754.40 × 163,804.16
  4. Step 4: Simplify right side
    291,127.68x = 65,809,042,018.30
  5. Step 5: Solve for x
    x = 65,809,042,018.30/291,127.68
  6. Step 6: Final answer
    x = 226,048.73

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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.