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Finding the Fourth Proportional to 340,315.19, 510,528.14 and 115,695.71

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Solution

The fourth proportional to 340,315.19, 510,528.14 and 115,695.71 is: 173,562.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,315.19 : 510,528.14 = 115,695.71 : x
  2. Step 2: Convert to fraction form
    340,315.19/510,528.14 = 115,695.71/x
  3. Step 3: Cross multiply
    340,315.19x = 510,528.14 × 115,695.71
  4. Step 4: Simplify right side
    340,315.19x = 59,065,915,053.80
  5. Step 5: Solve for x
    x = 59,065,915,053.80/340,315.19
  6. Step 6: Final answer
    x = 173,562.38

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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.