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Finding the Fourth Proportional to 189,091.96, 260,946.96 and 103,050.98

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Solution

The fourth proportional to 189,091.96, 260,946.96 and 103,050.98 is: 142,210.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,091.96 : 260,946.96 = 103,050.98 : x
  2. Step 2: Convert to fraction form
    189,091.96/260,946.96 = 103,050.98/x
  3. Step 3: Cross multiply
    189,091.96x = 260,946.96 × 103,050.98
  4. Step 4: Simplify right side
    189,091.96x = 26,890,839,956.02
  5. Step 5: Solve for x
    x = 26,890,839,956.02/189,091.96
  6. Step 6: Final answer
    x = 142,210.38

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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.