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Finding the Fourth Proportional to 93,266.92, 128,685.54 and 59,778.28

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Solution

The fourth proportional to 93,266.92, 128,685.54 and 59,778.28 is: 82,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,266.92 : 128,685.54 = 59,778.28 : x
  2. Step 2: Convert to fraction form
    93,266.92/128,685.54 = 59,778.28/x
  3. Step 3: Cross multiply
    93,266.92x = 128,685.54 × 59,778.28
  4. Step 4: Simplify right side
    93,266.92x = 7,692,600,242.07
  5. Step 5: Solve for x
    x = 7,692,600,242.07/93,266.92
  6. Step 6: Final answer
    x = 82,479.41

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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.