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Finding the Fourth Proportional to 191,320.22, 286,990.04 and 64,975.34

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Solution

The fourth proportional to 191,320.22, 286,990.04 and 64,975.34 is: 97,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,320.22 : 286,990.04 = 64,975.34 : x
  2. Step 2: Convert to fraction form
    191,320.22/286,990.04 = 64,975.34/x
  3. Step 3: Cross multiply
    191,320.22x = 286,990.04 × 64,975.34
  4. Step 4: Simplify right side
    191,320.22x = 18,647,274,153.10
  5. Step 5: Solve for x
    x = 18,647,274,153.10/191,320.22
  6. Step 6: Final answer
    x = 97,466.30

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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.