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Finding the Fourth Proportional to 93,088.26, 139,506.48 and 66,734.82

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Solution

The fourth proportional to 93,088.26, 139,506.48 and 66,734.82 is: 100,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,088.26 : 139,506.48 = 66,734.82 : x
  2. Step 2: Convert to fraction form
    93,088.26/139,506.48 = 66,734.82/x
  3. Step 3: Cross multiply
    93,088.26x = 139,506.48 × 66,734.82
  4. Step 4: Simplify right side
    93,088.26x = 9,309,939,831.63
  5. Step 5: Solve for x
    x = 9,309,939,831.63/93,088.26
  6. Step 6: Final answer
    x = 100,011.97

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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.