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Finding the Fourth Proportional to 127,485.64, 191,240.86 and 46,454.68

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Solution

The fourth proportional to 127,485.64, 191,240.86 and 46,454.68 is: 69,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,485.64 : 191,240.86 = 46,454.68 : x
  2. Step 2: Convert to fraction form
    127,485.64/191,240.86 = 46,454.68/x
  3. Step 3: Cross multiply
    127,485.64x = 191,240.86 × 46,454.68
  4. Step 4: Simplify right side
    127,485.64x = 8,884,032,954.22
  5. Step 5: Solve for x
    x = 8,884,032,954.22/127,485.64
  6. Step 6: Final answer
    x = 69,686.54

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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.