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Finding the Fourth Proportional to 303,707.55, 455,561.33 and 93,345.15

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Solution

The fourth proportional to 303,707.55, 455,561.33 and 93,345.15 is: 140,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,707.55 : 455,561.33 = 93,345.15 : x
  2. Step 2: Convert to fraction form
    303,707.55/455,561.33 = 93,345.15/x
  3. Step 3: Cross multiply
    303,707.55x = 455,561.33 × 93,345.15
  4. Step 4: Simplify right side
    303,707.55x = 42,524,440,216.32
  5. Step 5: Solve for x
    x = 42,524,440,216.32/303,707.55
  6. Step 6: Final answer
    x = 140,017.73

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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.