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Finding the Fourth Proportional to 93,999.12, 129,718.44 and 58,182

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Solution

The fourth proportional to 93,999.12, 129,718.44 and 58,182 is: 80,290.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,999.12 : 129,718.44 = 58,182 : x
  2. Step 2: Convert to fraction form
    93,999.12/129,718.44 = 58,182/x
  3. Step 3: Cross multiply
    93,999.12x = 129,718.44 × 58,182
  4. Step 4: Simplify right side
    93,999.12x = 7,547,278,276.08
  5. Step 5: Solve for x
    x = 7,547,278,276.08/93,999.12
  6. Step 6: Final answer
    x = 80,290.95

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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.