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Finding the Fourth Proportional to 191,886.66, 264,804.62 and 105,848.66

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Solution

The fourth proportional to 191,886.66, 264,804.62 and 105,848.66 is: 146,071.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,886.66 : 264,804.62 = 105,848.66 : x
  2. Step 2: Convert to fraction form
    191,886.66/264,804.62 = 105,848.66/x
  3. Step 3: Cross multiply
    191,886.66x = 264,804.62 × 105,848.66
  4. Step 4: Simplify right side
    191,886.66x = 28,029,212,335.54
  5. Step 5: Solve for x
    x = 28,029,212,335.54/191,886.66
  6. Step 6: Final answer
    x = 146,071.71

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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.