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Finding the Fourth Proportional to 93,746.40, 140,648.40 and 74,032.80

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Solution

The fourth proportional to 93,746.40, 140,648.40 and 74,032.80 is: 111,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,746.40 : 140,648.40 = 74,032.80 : x
  2. Step 2: Convert to fraction form
    93,746.40/140,648.40 = 74,032.80/x
  3. Step 3: Cross multiply
    93,746.40x = 140,648.40 × 74,032.80
  4. Step 4: Simplify right side
    93,746.40x = 10,412,594,867.52
  5. Step 5: Solve for x
    x = 10,412,594,867.52/93,746.40
  6. Step 6: Final answer
    x = 111,071.94

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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.