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Finding the Fourth Proportional to 355,754.16, 533,671.20 and 119,113.20

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Solution

The fourth proportional to 355,754.16, 533,671.20 and 119,113.20 is: 178,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,754.16 : 533,671.20 = 119,113.20 : x
  2. Step 2: Convert to fraction form
    355,754.16/533,671.20 = 119,113.20/x
  3. Step 3: Cross multiply
    355,754.16x = 533,671.20 × 119,113.20
  4. Step 4: Simplify right side
    355,754.16x = 63,567,284,379.84
  5. Step 5: Solve for x
    x = 63,567,284,379.84/355,754.16
  6. Step 6: Final answer
    x = 178,683.18

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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.