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Finding the Fourth Proportional to 106,999.76, 147,661.32 and 58,600.80

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Solution

The fourth proportional to 106,999.76, 147,661.32 and 58,600.80 is: 80,870.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,999.76 : 147,661.32 = 58,600.80 : x
  2. Step 2: Convert to fraction form
    106,999.76/147,661.32 = 58,600.80/x
  3. Step 3: Cross multiply
    106,999.76x = 147,661.32 × 58,600.80
  4. Step 4: Simplify right side
    106,999.76x = 8,653,070,742.75
  5. Step 5: Solve for x
    x = 8,653,070,742.75/106,999.76
  6. Step 6: Final answer
    x = 80,870.00

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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.