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Finding the Fourth Proportional to 356,959.09, 535,440.48 and 120,303.82

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Solution

The fourth proportional to 356,959.09, 535,440.48 and 120,303.82 is: 180,456.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,959.09 : 535,440.48 = 120,303.82 : x
  2. Step 2: Convert to fraction form
    356,959.09/535,440.48 = 120,303.82/x
  3. Step 3: Cross multiply
    356,959.09x = 535,440.48 × 120,303.82
  4. Step 4: Simplify right side
    356,959.09x = 64,415,535,126.63
  5. Step 5: Solve for x
    x = 64,415,535,126.63/356,959.09
  6. Step 6: Final answer
    x = 180,456.35

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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.