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Finding the Fourth Proportional to 191,984.30, 268,428.10 and 191,984.30

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Solution

The fourth proportional to 191,984.30, 268,428.10 and 191,984.30 is: 268,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,984.30 : 268,428.10 = 191,984.30 : x
  2. Step 2: Convert to fraction form
    191,984.30/268,428.10 = 191,984.30/x
  3. Step 3: Cross multiply
    191,984.30x = 268,428.10 × 191,984.30
  4. Step 4: Simplify right side
    191,984.30x = 51,533,980,878.83
  5. Step 5: Solve for x
    x = 51,533,980,878.83/191,984.30
  6. Step 6: Final answer
    x = 268,428.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.