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Finding the Fourth Proportional to 145,073.15, 217,539.72 and 60,810.68

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Solution

The fourth proportional to 145,073.15, 217,539.72 and 60,810.68 is: 91,186.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,073.15 : 217,539.72 = 60,810.68 : x
  2. Step 2: Convert to fraction form
    145,073.15/217,539.72 = 60,810.68/x
  3. Step 3: Cross multiply
    145,073.15x = 217,539.72 × 60,810.68
  4. Step 4: Simplify right side
    145,073.15x = 13,228,737,212.51
  5. Step 5: Solve for x
    x = 13,228,737,212.51/145,073.15
  6. Step 6: Final answer
    x = 91,186.67

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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.