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Finding the Fourth Proportional to 104,632.40, 156,689.40 and 83,896.40

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Solution

The fourth proportional to 104,632.40, 156,689.40 and 83,896.40 is: 125,636.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,632.40 : 156,689.40 = 83,896.40 : x
  2. Step 2: Convert to fraction form
    104,632.40/156,689.40 = 83,896.40/x
  3. Step 3: Cross multiply
    104,632.40x = 156,689.40 × 83,896.40
  4. Step 4: Simplify right side
    104,632.40x = 13,145,676,578.16
  5. Step 5: Solve for x
    x = 13,145,676,578.16/104,632.40
  6. Step 6: Final answer
    x = 125,636.77

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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.