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Finding the Fourth Proportional to 93,803.92, 129,431.40 and 63,613.84

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Solution

The fourth proportional to 93,803.92, 129,431.40 and 63,613.84 is: 87,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,803.92 : 129,431.40 = 63,613.84 : x
  2. Step 2: Convert to fraction form
    93,803.92/129,431.40 = 63,613.84/x
  3. Step 3: Cross multiply
    93,803.92x = 129,431.40 × 63,613.84
  4. Step 4: Simplify right side
    93,803.92x = 8,233,628,370.58
  5. Step 5: Solve for x
    x = 8,233,628,370.58/93,803.92
  6. Step 6: Final answer
    x = 87,774.89

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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.