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Finding the Fourth Proportional to 93,419.06, 128,921.04 and 50,980.33

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Solution

The fourth proportional to 93,419.06, 128,921.04 and 50,980.33 is: 70,354.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,419.06 : 128,921.04 = 50,980.33 : x
  2. Step 2: Convert to fraction form
    93,419.06/128,921.04 = 50,980.33/x
  3. Step 3: Cross multiply
    93,419.06x = 128,921.04 × 50,980.33
  4. Step 4: Simplify right side
    93,419.06x = 6,572,436,840.84
  5. Step 5: Solve for x
    x = 6,572,436,840.84/93,419.06
  6. Step 6: Final answer
    x = 70,354.34

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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.