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Finding the Fourth Proportional to 303,435.20, 455,152.80 and 93,045.80

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Solution

The fourth proportional to 303,435.20, 455,152.80 and 93,045.80 is: 139,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,435.20 : 455,152.80 = 93,045.80 : x
  2. Step 2: Convert to fraction form
    303,435.20/455,152.80 = 93,045.80/x
  3. Step 3: Cross multiply
    303,435.20x = 455,152.80 × 93,045.80
  4. Step 4: Simplify right side
    303,435.20x = 42,350,056,398.24
  5. Step 5: Solve for x
    x = 42,350,056,398.24/303,435.20
  6. Step 6: Final answer
    x = 139,568.70

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1.5x scale

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.