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Finding the Fourth Proportional to 93,679.94, 129,283.05 and 55,461.42

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Solution

The fourth proportional to 93,679.94, 129,283.05 and 55,461.42 is: 76,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,679.94 : 129,283.05 = 55,461.42 : x
  2. Step 2: Convert to fraction form
    93,679.94/129,283.05 = 55,461.42/x
  3. Step 3: Cross multiply
    93,679.94x = 129,283.05 × 55,461.42
  4. Step 4: Simplify right side
    93,679.94x = 7,170,221,534.93
  5. Step 5: Solve for x
    x = 7,170,221,534.93/93,679.94
  6. Step 6: Final answer
    x = 76,539.56

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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.