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Finding the Fourth Proportional to 125,166.92, 172,730.72 and 67,806.82

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Solution

The fourth proportional to 125,166.92, 172,730.72 and 67,806.82 is: 93,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,166.92 : 172,730.72 = 67,806.82 : x
  2. Step 2: Convert to fraction form
    125,166.92/172,730.72 = 67,806.82/x
  3. Step 3: Cross multiply
    125,166.92x = 172,730.72 × 67,806.82
  4. Step 4: Simplify right side
    125,166.92x = 11,712,320,839.51
  5. Step 5: Solve for x
    x = 11,712,320,839.51/125,166.92
  6. Step 6: Final answer
    x = 93,573.61

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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.