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Finding the Fourth Proportional to 313,308.61, 432,366.46 and 170,068.82

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Solution

The fourth proportional to 313,308.61, 432,366.46 and 170,068.82 is: 234,695.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,308.61 : 432,366.46 = 170,068.82 : x
  2. Step 2: Convert to fraction form
    313,308.61/432,366.46 = 170,068.82/x
  3. Step 3: Cross multiply
    313,308.61x = 432,366.46 × 170,068.82
  4. Step 4: Simplify right side
    313,308.61x = 73,532,051,072.77
  5. Step 5: Solve for x
    x = 73,532,051,072.77/313,308.61
  6. Step 6: Final answer
    x = 234,695.28

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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.