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Finding the Fourth Proportional to 456,160.40, 684,044.88 and 156,671.12

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Solution

The fourth proportional to 456,160.40, 684,044.88 and 156,671.12 is: 234,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,160.40 : 684,044.88 = 156,671.12 : x
  2. Step 2: Convert to fraction form
    456,160.40/684,044.88 = 156,671.12/x
  3. Step 3: Cross multiply
    456,160.40x = 684,044.88 × 156,671.12
  4. Step 4: Simplify right side
    456,160.40x = 107,170,077,479.87
  5. Step 5: Solve for x
    x = 107,170,077,479.87/456,160.40
  6. Step 6: Final answer
    x = 234,939.46

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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.