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Finding the Fourth Proportional to 120,970.03, 166,929.15 and 67,251.77

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Solution

The fourth proportional to 120,970.03, 166,929.15 and 67,251.77 is: 92,802.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,970.03 : 166,929.15 = 67,251.77 : x
  2. Step 2: Convert to fraction form
    120,970.03/166,929.15 = 67,251.77/x
  3. Step 3: Cross multiply
    120,970.03x = 166,929.15 × 67,251.77
  4. Step 4: Simplify right side
    120,970.03x = 11,226,280,802.10
  5. Step 5: Solve for x
    x = 11,226,280,802.10/120,970.03
  6. Step 6: Final answer
    x = 92,802.17

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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.