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Finding the Fourth Proportional to 93,160.56, 128,541.64 and 55,427.44

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Solution

The fourth proportional to 93,160.56, 128,541.64 and 55,427.44 is: 76,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,160.56 : 128,541.64 = 55,427.44 : x
  2. Step 2: Convert to fraction form
    93,160.56/128,541.64 = 55,427.44/x
  3. Step 3: Cross multiply
    93,160.56x = 128,541.64 × 55,427.44
  4. Step 4: Simplify right side
    93,160.56x = 7,124,734,038.60
  5. Step 5: Solve for x
    x = 7,124,734,038.60/93,160.56
  6. Step 6: Final answer
    x = 76,478.01

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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.