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Finding the Fourth Proportional to 93,924.40, 141,011.70 and 54,509.80

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Solution

The fourth proportional to 93,924.40, 141,011.70 and 54,509.80 is: 81,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,924.40 : 141,011.70 = 54,509.80 : x
  2. Step 2: Convert to fraction form
    93,924.40/141,011.70 = 54,509.80/x
  3. Step 3: Cross multiply
    93,924.40x = 141,011.70 × 54,509.80
  4. Step 4: Simplify right side
    93,924.40x = 7,686,519,564.66
  5. Step 5: Solve for x
    x = 7,686,519,564.66/93,924.40
  6. Step 6: Final answer
    x = 81,837.30

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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.