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Finding the Fourth Proportional to 104,437.80, 156,656.70 and 64,974.60

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Solution

The fourth proportional to 104,437.80, 156,656.70 and 64,974.60 is: 97,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,437.80 : 156,656.70 = 64,974.60 : x
  2. Step 2: Convert to fraction form
    104,437.80/156,656.70 = 64,974.60/x
  3. Step 3: Cross multiply
    104,437.80x = 156,656.70 × 64,974.60
  4. Step 4: Simplify right side
    104,437.80x = 10,178,706,419.82
  5. Step 5: Solve for x
    x = 10,178,706,419.82/104,437.80
  6. Step 6: Final answer
    x = 97,461.90

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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.