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Finding the Fourth Proportional to 93,570.80, 129,135.06 and 53,286.26

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Solution

The fourth proportional to 93,570.80, 129,135.06 and 53,286.26 is: 73,539.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,570.80 : 129,135.06 = 53,286.26 : x
  2. Step 2: Convert to fraction form
    93,570.80/129,135.06 = 53,286.26/x
  3. Step 3: Cross multiply
    93,570.80x = 129,135.06 × 53,286.26
  4. Step 4: Simplify right side
    93,570.80x = 6,881,123,736.60
  5. Step 5: Solve for x
    x = 6,881,123,736.60/93,570.80
  6. Step 6: Final answer
    x = 73,539.22

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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.