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Finding the Fourth Proportional to 303,809.59, 455,432.66 and 104,082.51

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Solution

The fourth proportional to 303,809.59, 455,432.66 and 104,082.51 is: 156,027.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,809.59 : 455,432.66 = 104,082.51 : x
  2. Step 2: Convert to fraction form
    303,809.59/455,432.66 = 104,082.51/x
  3. Step 3: Cross multiply
    303,809.59x = 455,432.66 × 104,082.51
  4. Step 4: Simplify right side
    303,809.59x = 47,402,574,388.78
  5. Step 5: Solve for x
    x = 47,402,574,388.78/303,809.59
  6. Step 6: Final answer
    x = 156,027.25

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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.