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Finding the Fourth Proportional to 100,595.96, 151,495.74 and 91,628.04

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Solution

The fourth proportional to 100,595.96, 151,495.74 and 91,628.04 is: 137,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,595.96 : 151,495.74 = 91,628.04 : x
  2. Step 2: Convert to fraction form
    100,595.96/151,495.74 = 91,628.04/x
  3. Step 3: Cross multiply
    100,595.96x = 151,495.74 × 91,628.04
  4. Step 4: Simplify right side
    100,595.96x = 13,881,257,724.55
  5. Step 5: Solve for x
    x = 13,881,257,724.55/100,595.96
  6. Step 6: Final answer
    x = 137,990.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.