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Finding the Fourth Proportional to 93,992.88, 129,718.32 and 51,559.68

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Solution

The fourth proportional to 93,992.88, 129,718.32 and 51,559.68 is: 71,156.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,992.88 : 129,718.32 = 51,559.68 : x
  2. Step 2: Convert to fraction form
    93,992.88/129,718.32 = 51,559.68/x
  3. Step 3: Cross multiply
    93,992.88x = 129,718.32 × 51,559.68
  4. Step 4: Simplify right side
    93,992.88x = 6,688,235,069.34
  5. Step 5: Solve for x
    x = 6,688,235,069.34/93,992.88
  6. Step 6: Final answer
    x = 71,156.83

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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.