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Finding the Fourth Proportional to 78,485.30, 117,533.55 and 62,933.30

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Solution

The fourth proportional to 78,485.30, 117,533.55 and 62,933.30 is: 94,244.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,485.30 : 117,533.55 = 62,933.30 : x
  2. Step 2: Convert to fraction form
    78,485.30/117,533.55 = 62,933.30/x
  3. Step 3: Cross multiply
    78,485.30x = 117,533.55 × 62,933.30
  4. Step 4: Simplify right side
    78,485.30x = 7,396,774,162.22
  5. Step 5: Solve for x
    x = 7,396,774,162.22/78,485.30
  6. Step 6: Final answer
    x = 94,244.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.