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Finding the Fourth Proportional to 403,959.51, 605,957.04 and 119,638.58

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Solution

The fourth proportional to 403,959.51, 605,957.04 and 119,638.58 is: 179,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,959.51 : 605,957.04 = 119,638.58 : x
  2. Step 2: Convert to fraction form
    403,959.51/605,957.04 = 119,638.58/x
  3. Step 3: Cross multiply
    403,959.51x = 605,957.04 × 119,638.58
  4. Step 4: Simplify right side
    403,959.51x = 72,495,836,776.82
  5. Step 5: Solve for x
    x = 72,495,836,776.82/403,959.51
  6. Step 6: Final answer
    x = 179,463.13

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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.