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Finding the Fourth Proportional to 177,166.40, 265,900.80 and 72,060.80

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Solution

The fourth proportional to 177,166.40, 265,900.80 and 72,060.80 is: 108,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,166.40 : 265,900.80 = 72,060.80 : x
  2. Step 2: Convert to fraction form
    177,166.40/265,900.80 = 72,060.80/x
  3. Step 3: Cross multiply
    177,166.40x = 265,900.80 × 72,060.80
  4. Step 4: Simplify right side
    177,166.40x = 19,161,024,368.64
  5. Step 5: Solve for x
    x = 19,161,024,368.64/177,166.40
  6. Step 6: Final answer
    x = 108,152.70

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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.