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Finding the Fourth Proportional to 115,468.40, 173,380.80 and 62,980.40

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Solution

The fourth proportional to 115,468.40, 173,380.80 and 62,980.40 is: 94,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,468.40 : 173,380.80 = 62,980.40 : x
  2. Step 2: Convert to fraction form
    115,468.40/173,380.80 = 62,980.40/x
  3. Step 3: Cross multiply
    115,468.40x = 173,380.80 × 62,980.40
  4. Step 4: Simplify right side
    115,468.40x = 10,919,592,136.32
  5. Step 5: Solve for x
    x = 10,919,592,136.32/115,468.40
  6. Step 6: Final answer
    x = 94,567.80

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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.