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Finding the Fourth Proportional to 191,816.76, 264,701.06 and 105,779.37

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Solution

The fourth proportional to 191,816.76, 264,701.06 and 105,779.37 is: 145,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,816.76 : 264,701.06 = 105,779.37 : x
  2. Step 2: Convert to fraction form
    191,816.76/264,701.06 = 105,779.37/x
  3. Step 3: Cross multiply
    191,816.76x = 264,701.06 × 105,779.37
  4. Step 4: Simplify right side
    191,816.76x = 27,999,909,512.73
  5. Step 5: Solve for x
    x = 27,999,909,512.73/191,816.76
  6. Step 6: Final answer
    x = 145,972.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.