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Finding the Fourth Proportional to 86,666.70, 130,041.33 and 60,053.73

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Solution

The fourth proportional to 86,666.70, 130,041.33 and 60,053.73 is: 90,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,666.70 : 130,041.33 = 60,053.73 : x
  2. Step 2: Convert to fraction form
    86,666.70/130,041.33 = 60,053.73/x
  3. Step 3: Cross multiply
    86,666.70x = 130,041.33 × 60,053.73
  4. Step 4: Simplify right side
    86,666.70x = 7,809,466,920.66
  5. Step 5: Solve for x
    x = 7,809,466,920.66/86,666.70
  6. Step 6: Final answer
    x = 90,109.20

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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.