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Finding the Fourth Proportional to 93,144.60, 128,294.70 and 71,593.14

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Solution

The fourth proportional to 93,144.60, 128,294.70 and 71,593.14 is: 98,610.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,144.60 : 128,294.70 = 71,593.14 : x
  2. Step 2: Convert to fraction form
    93,144.60/128,294.70 = 71,593.14/x
  3. Step 3: Cross multiply
    93,144.60x = 128,294.70 × 71,593.14
  4. Step 4: Simplify right side
    93,144.60x = 9,185,020,418.36
  5. Step 5: Solve for x
    x = 9,185,020,418.36/93,144.60
  6. Step 6: Final answer
    x = 98,610.34

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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.