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Finding the Fourth Proportional to 93,394.73, 128,879.48 and 53,118.29

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Solution

The fourth proportional to 93,394.73, 128,879.48 and 53,118.29 is: 73,300.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,394.73 : 128,879.48 = 53,118.29 : x
  2. Step 2: Convert to fraction form
    93,394.73/128,879.48 = 53,118.29/x
  3. Step 3: Cross multiply
    93,394.73x = 128,879.48 × 53,118.29
  4. Step 4: Simplify right side
    93,394.73x = 6,845,857,167.00
  5. Step 5: Solve for x
    x = 6,845,857,167.00/93,394.73
  6. Step 6: Final answer
    x = 73,300.25

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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.