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Finding the Fourth Proportional to 107,478.64, 148,315.94 and 59,734.92

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Solution

The fourth proportional to 107,478.64, 148,315.94 and 59,734.92 is: 82,431.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,478.64 : 148,315.94 = 59,734.92 : x
  2. Step 2: Convert to fraction form
    107,478.64/148,315.94 = 59,734.92/x
  3. Step 3: Cross multiply
    107,478.64x = 148,315.94 × 59,734.92
  4. Step 4: Simplify right side
    107,478.64x = 8,859,640,810.62
  5. Step 5: Solve for x
    x = 8,859,640,810.62/107,478.64
  6. Step 6: Final answer
    x = 82,431.64

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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.