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Finding the Fourth Proportional to 303,856.24, 455,686.80 and 101,398.72

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Solution

The fourth proportional to 303,856.24, 455,686.80 and 101,398.72 is: 152,065.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,856.24 : 455,686.80 = 101,398.72 : x
  2. Step 2: Convert to fraction form
    303,856.24/455,686.80 = 101,398.72/x
  3. Step 3: Cross multiply
    303,856.24x = 455,686.80 × 101,398.72
  4. Step 4: Simplify right side
    303,856.24x = 46,206,058,240.90
  5. Step 5: Solve for x
    x = 46,206,058,240.90/303,856.24
  6. Step 6: Final answer
    x = 152,065.52

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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.