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Finding the Fourth Proportional to 93,090.74, 139,618.76 and 29,911.95

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Solution

The fourth proportional to 93,090.74, 139,618.76 and 29,911.95 is: 44,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,090.74 : 139,618.76 = 29,911.95 : x
  2. Step 2: Convert to fraction form
    93,090.74/139,618.76 = 29,911.95/x
  3. Step 3: Cross multiply
    93,090.74x = 139,618.76 × 29,911.95
  4. Step 4: Simplify right side
    93,090.74x = 4,176,269,218.62
  5. Step 5: Solve for x
    x = 4,176,269,218.62/93,090.74
  6. Step 6: Final answer
    x = 44,862.35

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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.