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Finding the Fourth Proportional to 127,065.84, 190,474.81 and 60,488.08

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Solution

The fourth proportional to 127,065.84, 190,474.81 and 60,488.08 is: 90,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,065.84 : 190,474.81 = 60,488.08 : x
  2. Step 2: Convert to fraction form
    127,065.84/190,474.81 = 60,488.08/x
  3. Step 3: Cross multiply
    127,065.84x = 190,474.81 × 60,488.08
  4. Step 4: Simplify right side
    127,065.84x = 11,521,455,545.26
  5. Step 5: Solve for x
    x = 11,521,455,545.26/127,065.84
  6. Step 6: Final answer
    x = 90,673.12

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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.