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Finding the Fourth Proportional to 93,803.55, 129,449.72 and 55,565.27

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Solution

The fourth proportional to 93,803.55, 129,449.72 and 55,565.27 is: 76,680.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,803.55 : 129,449.72 = 55,565.27 : x
  2. Step 2: Convert to fraction form
    93,803.55/129,449.72 = 55,565.27/x
  3. Step 3: Cross multiply
    93,803.55x = 129,449.72 × 55,565.27
  4. Step 4: Simplify right side
    93,803.55x = 7,192,908,643.22
  5. Step 5: Solve for x
    x = 7,192,908,643.22/93,803.55
  6. Step 6: Final answer
    x = 76,680.56

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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.