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Finding the Fourth Proportional to 127,368.62, 175,583.45 and 89,009.08

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Solution

The fourth proportional to 127,368.62, 175,583.45 and 89,009.08 is: 122,703.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,368.62 : 175,583.45 = 89,009.08 : x
  2. Step 2: Convert to fraction form
    127,368.62/175,583.45 = 89,009.08/x
  3. Step 3: Cross multiply
    127,368.62x = 175,583.45 × 89,009.08
  4. Step 4: Simplify right side
    127,368.62x = 15,628,521,131.29
  5. Step 5: Solve for x
    x = 15,628,521,131.29/127,368.62
  6. Step 6: Final answer
    x = 122,703.07

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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.