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Finding the Fourth Proportional to 177,880.40, 266,593.80 and 72,580.40

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Solution

The fourth proportional to 177,880.40, 266,593.80 and 72,580.40 is: 108,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,880.40 : 266,593.80 = 72,580.40 : x
  2. Step 2: Convert to fraction form
    177,880.40/266,593.80 = 72,580.40/x
  3. Step 3: Cross multiply
    177,880.40x = 266,593.80 × 72,580.40
  4. Step 4: Simplify right side
    177,880.40x = 19,349,484,641.52
  5. Step 5: Solve for x
    x = 19,349,484,641.52/177,880.40
  6. Step 6: Final answer
    x = 108,778.06

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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.