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Finding the Fourth Proportional to 173,885.80, 260,828.70 and 155,186.95

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Solution

The fourth proportional to 173,885.80, 260,828.70 and 155,186.95 is: 232,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,885.80 : 260,828.70 = 155,186.95 : x
  2. Step 2: Convert to fraction form
    173,885.80/260,828.70 = 155,186.95/x
  3. Step 3: Cross multiply
    173,885.80x = 260,828.70 × 155,186.95
  4. Step 4: Simplify right side
    173,885.80x = 40,477,210,425.47
  5. Step 5: Solve for x
    x = 40,477,210,425.47/173,885.80
  6. Step 6: Final answer
    x = 232,780.43

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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.