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Finding the Fourth Proportional to 191,848.32, 287,798.76 and 65,454.66

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Solution

The fourth proportional to 191,848.32, 287,798.76 and 65,454.66 is: 98,190.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,848.32 : 287,798.76 = 65,454.66 : x
  2. Step 2: Convert to fraction form
    191,848.32/287,798.76 = 65,454.66/x
  3. Step 3: Cross multiply
    191,848.32x = 287,798.76 × 65,454.66
  4. Step 4: Simplify right side
    191,848.32x = 18,837,769,984.22
  5. Step 5: Solve for x
    x = 18,837,769,984.22/191,848.32
  6. Step 6: Final answer
    x = 98,190.96

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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.