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Finding the Fourth Proportional to 124,068.80, 171,206.52 and 67,478.96

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Solution

The fourth proportional to 124,068.80, 171,206.52 and 67,478.96 is: 93,116.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,068.80 : 171,206.52 = 67,478.96 : x
  2. Step 2: Convert to fraction form
    124,068.80/171,206.52 = 67,478.96/x
  3. Step 3: Cross multiply
    124,068.80x = 171,206.52 × 67,478.96
  4. Step 4: Simplify right side
    124,068.80x = 11,552,837,914.82
  5. Step 5: Solve for x
    x = 11,552,837,914.82/124,068.80
  6. Step 6: Final answer
    x = 93,116.38

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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.