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Finding the Fourth Proportional to 357,036.49, 535,556.58 and 120,381.22

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Solution

The fourth proportional to 357,036.49, 535,556.58 and 120,381.22 is: 180,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,036.49 : 535,556.58 = 120,381.22 : x
  2. Step 2: Convert to fraction form
    357,036.49/535,556.58 = 120,381.22/x
  3. Step 3: Cross multiply
    357,036.49x = 535,556.58 × 120,381.22
  4. Step 4: Simplify right side
    357,036.49x = 64,470,954,479.43
  5. Step 5: Solve for x
    x = 64,470,954,479.43/357,036.49
  6. Step 6: Final answer
    x = 180,572.45

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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.