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Finding the Fourth Proportional to 111,607.80, 167,411.70 and 64,951.80

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Solution

The fourth proportional to 111,607.80, 167,411.70 and 64,951.80 is: 97,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,607.80 : 167,411.70 = 64,951.80 : x
  2. Step 2: Convert to fraction form
    111,607.80/167,411.70 = 64,951.80/x
  3. Step 3: Cross multiply
    111,607.80x = 167,411.70 × 64,951.80
  4. Step 4: Simplify right side
    111,607.80x = 10,873,691,256.06
  5. Step 5: Solve for x
    x = 10,873,691,256.06/111,607.80
  6. Step 6: Final answer
    x = 97,427.70

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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.