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Finding the Fourth Proportional to 93,290.92, 128,744.58 and 55,560.04

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Solution

The fourth proportional to 93,290.92, 128,744.58 and 55,560.04 is: 76,674.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,290.92 : 128,744.58 = 55,560.04 : x
  2. Step 2: Convert to fraction form
    93,290.92/128,744.58 = 55,560.04/x
  3. Step 3: Cross multiply
    93,290.92x = 128,744.58 × 55,560.04
  4. Step 4: Simplify right side
    93,290.92x = 7,153,054,014.58
  5. Step 5: Solve for x
    x = 7,153,054,014.58/93,290.92
  6. Step 6: Final answer
    x = 76,674.71

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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.