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Finding the Fourth Proportional to 127,694.54, 176,218.80 and 70,332.50

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Solution

The fourth proportional to 127,694.54, 176,218.80 and 70,332.50 is: 97,059.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,694.54 : 176,218.80 = 70,332.50 : x
  2. Step 2: Convert to fraction form
    127,694.54/176,218.80 = 70,332.50/x
  3. Step 3: Cross multiply
    127,694.54x = 176,218.80 × 70,332.50
  4. Step 4: Simplify right side
    127,694.54x = 12,393,908,751
  5. Step 5: Solve for x
    x = 12,393,908,751/127,694.54
  6. Step 6: Final answer
    x = 97,059.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.