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Finding the Fourth Proportional to 104,646.40, 156,969.60 and 73,153.60

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Solution

The fourth proportional to 104,646.40, 156,969.60 and 73,153.60 is: 109,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,646.40 : 156,969.60 = 73,153.60 : x
  2. Step 2: Convert to fraction form
    104,646.40/156,969.60 = 73,153.60/x
  3. Step 3: Cross multiply
    104,646.40x = 156,969.60 × 73,153.60
  4. Step 4: Simplify right side
    104,646.40x = 11,482,891,330.56
  5. Step 5: Solve for x
    x = 11,482,891,330.56/104,646.40
  6. Step 6: Final answer
    x = 109,730.40

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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.