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Finding the Fourth Proportional to 55,412.40, 83,118.60 and 29,168.40

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Solution

The fourth proportional to 55,412.40, 83,118.60 and 29,168.40 is: 43,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,412.40 : 83,118.60 = 29,168.40 : x
  2. Step 2: Convert to fraction form
    55,412.40/83,118.60 = 29,168.40/x
  3. Step 3: Cross multiply
    55,412.40x = 83,118.60 × 29,168.40
  4. Step 4: Simplify right side
    55,412.40x = 2,424,436,572.24
  5. Step 5: Solve for x
    x = 2,424,436,572.24/55,412.40
  6. Step 6: Final answer
    x = 43,752.60

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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.