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Finding the Fourth Proportional to 303,451.30, 455,176.95 and 93,061.90

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Solution

The fourth proportional to 303,451.30, 455,176.95 and 93,061.90 is: 139,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,451.30 : 455,176.95 = 93,061.90 : x
  2. Step 2: Convert to fraction form
    303,451.30/455,176.95 = 93,061.90/x
  3. Step 3: Cross multiply
    303,451.30x = 455,176.95 × 93,061.90
  4. Step 4: Simplify right side
    303,451.30x = 42,359,631,803.21
  5. Step 5: Solve for x
    x = 42,359,631,803.21/303,451.30
  6. Step 6: Final answer
    x = 139,592.85

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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.