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Finding the Fourth Proportional to 104,538.64, 156,603.82 and 83,522.40

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Solution

The fourth proportional to 104,538.64, 156,603.82 and 83,522.40 is: 125,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,538.64 : 156,603.82 = 83,522.40 : x
  2. Step 2: Convert to fraction form
    104,538.64/156,603.82 = 83,522.40/x
  3. Step 3: Cross multiply
    104,538.64x = 156,603.82 × 83,522.40
  4. Step 4: Simplify right side
    104,538.64x = 13,079,926,895.57
  5. Step 5: Solve for x
    x = 13,079,926,895.57/104,538.64
  6. Step 6: Final answer
    x = 125,120.50

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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.