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Finding the Fourth Proportional to 93,735.63, 129,415.52 and 83,646.72

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Solution

The fourth proportional to 93,735.63, 129,415.52 and 83,646.72 is: 115,486.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,735.63 : 129,415.52 = 83,646.72 : x
  2. Step 2: Convert to fraction form
    93,735.63/129,415.52 = 83,646.72/x
  3. Step 3: Cross multiply
    93,735.63x = 129,415.52 × 83,646.72
  4. Step 4: Simplify right side
    93,735.63x = 10,825,183,974.21
  5. Step 5: Solve for x
    x = 10,825,183,974.21/93,735.63
  6. Step 6: Final answer
    x = 115,486.33

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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.