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Finding the Fourth Proportional to 78,608.32, 108,516.04 and 46,332.77

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Solution

The fourth proportional to 78,608.32, 108,516.04 and 46,332.77 is: 63,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,608.32 : 108,516.04 = 46,332.77 : x
  2. Step 2: Convert to fraction form
    78,608.32/108,516.04 = 46,332.77/x
  3. Step 3: Cross multiply
    78,608.32x = 108,516.04 × 46,332.77
  4. Step 4: Simplify right side
    78,608.32x = 5,027,848,064.22
  5. Step 5: Solve for x
    x = 5,027,848,064.22/78,608.32
  6. Step 6: Final answer
    x = 63,960.76

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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.