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Finding the Fourth Proportional to 112,689.84, 169,070.13 and 67,762.92

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Solution

The fourth proportional to 112,689.84, 169,070.13 and 67,762.92 is: 101,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,689.84 : 169,070.13 = 67,762.92 : x
  2. Step 2: Convert to fraction form
    112,689.84/169,070.13 = 67,762.92/x
  3. Step 3: Cross multiply
    112,689.84x = 169,070.13 × 67,762.92
  4. Step 4: Simplify right side
    112,689.84x = 11,456,685,693.58
  5. Step 5: Solve for x
    x = 11,456,685,693.58/112,689.84
  6. Step 6: Final answer
    x = 101,665.65

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1.5x scale

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.