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Finding the Fourth Proportional to 93,243.26, 128,573.73 and 62,976.03

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Solution

The fourth proportional to 93,243.26, 128,573.73 and 62,976.03 is: 86,838.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,243.26 : 128,573.73 = 62,976.03 : x
  2. Step 2: Convert to fraction form
    93,243.26/128,573.73 = 62,976.03/x
  3. Step 3: Cross multiply
    93,243.26x = 128,573.73 × 62,976.03
  4. Step 4: Simplify right side
    93,243.26x = 8,097,063,318.77
  5. Step 5: Solve for x
    x = 8,097,063,318.77/93,243.26
  6. Step 6: Final answer
    x = 86,838.06

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1.5x scale

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.