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Finding the Fourth Proportional to 401,017.44, 601,510.80 and 134,941.28

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Solution

The fourth proportional to 401,017.44, 601,510.80 and 134,941.28 is: 202,406.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,017.44 : 601,510.80 = 134,941.28 : x
  2. Step 2: Convert to fraction form
    401,017.44/601,510.80 = 134,941.28/x
  3. Step 3: Cross multiply
    401,017.44x = 601,510.80 × 134,941.28
  4. Step 4: Simplify right side
    401,017.44x = 81,168,637,285.82
  5. Step 5: Solve for x
    x = 81,168,637,285.82/401,017.44
  6. Step 6: Final answer
    x = 202,406.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.