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Finding the Fourth Proportional to 152,612.92, 210,605.16 and 85,544.92

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Solution

The fourth proportional to 152,612.92, 210,605.16 and 85,544.92 is: 118,051.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,612.92 : 210,605.16 = 85,544.92 : x
  2. Step 2: Convert to fraction form
    152,612.92/210,605.16 = 85,544.92/x
  3. Step 3: Cross multiply
    152,612.92x = 210,605.16 × 85,544.92
  4. Step 4: Simplify right side
    152,612.92x = 18,016,201,563.79
  5. Step 5: Solve for x
    x = 18,016,201,563.79/152,612.92
  6. Step 6: Final answer
    x = 118,051.61

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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.