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Finding the Fourth Proportional to 93,478.59, 129,009.69 and 55,250.73

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Solution

The fourth proportional to 93,478.59, 129,009.69 and 55,250.73 is: 76,251.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,478.59 : 129,009.69 = 55,250.73 : x
  2. Step 2: Convert to fraction form
    93,478.59/129,009.69 = 55,250.73/x
  3. Step 3: Cross multiply
    93,478.59x = 129,009.69 × 55,250.73
  4. Step 4: Simplify right side
    93,478.59x = 7,127,879,549.57
  5. Step 5: Solve for x
    x = 7,127,879,549.57/93,478.59
  6. Step 6: Final answer
    x = 76,251.47

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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.