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Finding the Fourth Proportional to 88,158.93, 132,210.31 and 28,980.96

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Solution

The fourth proportional to 88,158.93, 132,210.31 and 28,980.96 is: 43,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,158.93 : 132,210.31 = 28,980.96 : x
  2. Step 2: Convert to fraction form
    88,158.93/132,210.31 = 28,980.96/x
  3. Step 3: Cross multiply
    88,158.93x = 132,210.31 × 28,980.96
  4. Step 4: Simplify right side
    88,158.93x = 3,831,581,705.70
  5. Step 5: Solve for x
    x = 3,831,581,705.70/88,158.93
  6. Step 6: Final answer
    x = 43,462.21

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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.