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Finding the Fourth Proportional to 315,671.44, 473,577.12 and 91,014.34

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Solution

The fourth proportional to 315,671.44, 473,577.12 and 91,014.34 is: 136,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,671.44 : 473,577.12 = 91,014.34 : x
  2. Step 2: Convert to fraction form
    315,671.44/473,577.12 = 91,014.34/x
  3. Step 3: Cross multiply
    315,671.44x = 473,577.12 × 91,014.34
  4. Step 4: Simplify right side
    315,671.44x = 43,102,306,648.02
  5. Step 5: Solve for x
    x = 43,102,306,648.02/315,671.44
  6. Step 6: Final answer
    x = 136,541.68

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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.