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Finding the Fourth Proportional to 60,402.88, 90,501.96 and 36,980.36

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Solution

The fourth proportional to 60,402.88, 90,501.96 and 36,980.36 is: 55,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,402.88 : 90,501.96 = 36,980.36 : x
  2. Step 2: Convert to fraction form
    60,402.88/90,501.96 = 36,980.36/x
  3. Step 3: Cross multiply
    60,402.88x = 90,501.96 × 36,980.36
  4. Step 4: Simplify right side
    60,402.88x = 3,346,795,061.51
  5. Step 5: Solve for x
    x = 3,346,795,061.51/60,402.88
  6. Step 6: Final answer
    x = 55,407.87

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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.