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Finding the Fourth Proportional to 230,041.99, 317,425.28 and 128,053.29

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Solution

The fourth proportional to 230,041.99, 317,425.28 and 128,053.29 is: 176,695.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,041.99 : 317,425.28 = 128,053.29 : x
  2. Step 2: Convert to fraction form
    230,041.99/317,425.28 = 128,053.29/x
  3. Step 3: Cross multiply
    230,041.99x = 317,425.28 × 128,053.29
  4. Step 4: Simplify right side
    230,041.99x = 40,647,352,257.17
  5. Step 5: Solve for x
    x = 40,647,352,257.17/230,041.99
  6. Step 6: Final answer
    x = 176,695.36

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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.