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Finding the Fourth Proportional to 127,391.71, 175,803.94 and 69,252.35

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Solution

The fourth proportional to 127,391.71, 175,803.94 and 69,252.35 is: 95,570.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,391.71 : 175,803.94 = 69,252.35 : x
  2. Step 2: Convert to fraction form
    127,391.71/175,803.94 = 69,252.35/x
  3. Step 3: Cross multiply
    127,391.71x = 175,803.94 × 69,252.35
  4. Step 4: Simplify right side
    127,391.71x = 12,174,835,984.26
  5. Step 5: Solve for x
    x = 12,174,835,984.26/127,391.71
  6. Step 6: Final answer
    x = 95,570.08

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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.