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Finding the Fourth Proportional to 113,461.01, 156,507.11 and 69,860.57

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Solution

The fourth proportional to 113,461.01, 156,507.11 and 69,860.57 is: 96,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,461.01 : 156,507.11 = 69,860.57 : x
  2. Step 2: Convert to fraction form
    113,461.01/156,507.11 = 69,860.57/x
  3. Step 3: Cross multiply
    113,461.01x = 156,507.11 × 69,860.57
  4. Step 4: Simplify right side
    113,461.01x = 10,933,676,217.59
  5. Step 5: Solve for x
    x = 10,933,676,217.59/113,461.01
  6. Step 6: Final answer
    x = 96,365.06

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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.