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Finding the Fourth Proportional to 207,056.62, 285,730.76 and 115,175.48

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Solution

The fourth proportional to 207,056.62, 285,730.76 and 115,175.48 is: 158,938.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,056.62 : 285,730.76 = 115,175.48 : x
  2. Step 2: Convert to fraction form
    207,056.62/285,730.76 = 115,175.48/x
  3. Step 3: Cross multiply
    207,056.62x = 285,730.76 × 115,175.48
  4. Step 4: Simplify right side
    207,056.62x = 32,909,176,857.89
  5. Step 5: Solve for x
    x = 32,909,176,857.89/207,056.62
  6. Step 6: Final answer
    x = 158,938.06

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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.