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Finding the Fourth Proportional to 104,444.80, 156,667.20 and 64,981.60

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Solution

The fourth proportional to 104,444.80, 156,667.20 and 64,981.60 is: 97,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,444.80 : 156,667.20 = 64,981.60 : x
  2. Step 2: Convert to fraction form
    104,444.80/156,667.20 = 64,981.60/x
  3. Step 3: Cross multiply
    104,444.80x = 156,667.20 × 64,981.60
  4. Step 4: Simplify right side
    104,444.80x = 10,180,485,323.52
  5. Step 5: Solve for x
    x = 10,180,485,323.52/104,444.80
  6. Step 6: Final answer
    x = 97,472.40

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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.