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Finding the Fourth Proportional to 192,611.52, 288,727.74 and 112,547.88

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Solution

The fourth proportional to 192,611.52, 288,727.74 and 112,547.88 is: 168,711.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,611.52 : 288,727.74 = 112,547.88 : x
  2. Step 2: Convert to fraction form
    192,611.52/288,727.74 = 112,547.88/x
  3. Step 3: Cross multiply
    192,611.52x = 288,727.74 × 112,547.88
  4. Step 4: Simplify right side
    192,611.52x = 32,495,695,034.19
  5. Step 5: Solve for x
    x = 32,495,695,034.19/192,611.52
  6. Step 6: Final answer
    x = 168,711.07

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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.