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Finding the Fourth Proportional to 96,697.61, 133,445.01 and 54,259.28

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Solution

The fourth proportional to 96,697.61, 133,445.01 and 54,259.28 is: 74,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,697.61 : 133,445.01 = 54,259.28 : x
  2. Step 2: Convert to fraction form
    96,697.61/133,445.01 = 54,259.28/x
  3. Step 3: Cross multiply
    96,697.61x = 133,445.01 × 54,259.28
  4. Step 4: Simplify right side
    96,697.61x = 7,240,630,162.19
  5. Step 5: Solve for x
    x = 7,240,630,162.19/96,697.61
  6. Step 6: Final answer
    x = 74,879.10

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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.