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Finding the Fourth Proportional to 457,799.12, 686,668.60 and 158,210

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Solution

The fourth proportional to 457,799.12, 686,668.60 and 158,210 is: 237,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,799.12 : 686,668.60 = 158,210 : x
  2. Step 2: Convert to fraction form
    457,799.12/686,668.60 = 158,210/x
  3. Step 3: Cross multiply
    457,799.12x = 686,668.60 × 158,210
  4. Step 4: Simplify right side
    457,799.12x = 108,637,839,206
  5. Step 5: Solve for x
    x = 108,637,839,206/457,799.12
  6. Step 6: Final answer
    x = 237,304.60

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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.