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Finding the Fourth Proportional to 122,657.67, 169,252.42 and 70,983.63

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Solution

The fourth proportional to 122,657.67, 169,252.42 and 70,983.63 is: 97,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,657.67 : 169,252.42 = 70,983.63 : x
  2. Step 2: Convert to fraction form
    122,657.67/169,252.42 = 70,983.63/x
  3. Step 3: Cross multiply
    122,657.67x = 169,252.42 × 70,983.63
  4. Step 4: Simplify right side
    122,657.67x = 12,014,151,157.88
  5. Step 5: Solve for x
    x = 12,014,151,157.88/122,657.67
  6. Step 6: Final answer
    x = 97,948.63

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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.