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Finding the Fourth Proportional to 112,337.45, 168,010.46 and 99,944.45

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Solution

The fourth proportional to 112,337.45, 168,010.46 and 99,944.45 is: 149,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,337.45 : 168,010.46 = 99,944.45 : x
  2. Step 2: Convert to fraction form
    112,337.45/168,010.46 = 99,944.45/x
  3. Step 3: Cross multiply
    112,337.45x = 168,010.46 × 99,944.45
  4. Step 4: Simplify right side
    112,337.45x = 16,791,712,519.22
  5. Step 5: Solve for x
    x = 16,791,712,519.22/112,337.45
  6. Step 6: Final answer
    x = 149,475.64

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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.