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Finding the Fourth Proportional to 176,901.60, 265,384.80 and 71,731.20

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Solution

The fourth proportional to 176,901.60, 265,384.80 and 71,731.20 is: 107,609.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,901.60 : 265,384.80 = 71,731.20 : x
  2. Step 2: Convert to fraction form
    176,901.60/265,384.80 = 71,731.20/x
  3. Step 3: Cross multiply
    176,901.60x = 265,384.80 × 71,731.20
  4. Step 4: Simplify right side
    176,901.60x = 19,036,370,165.76
  5. Step 5: Solve for x
    x = 19,036,370,165.76/176,901.60
  6. Step 6: Final answer
    x = 107,609.94

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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.