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Finding the Fourth Proportional to 145,957.96, 218,510.46 and 131,950.36

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Solution

The fourth proportional to 145,957.96, 218,510.46 and 131,950.36 is: 197,539.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,957.96 : 218,510.46 = 131,950.36 : x
  2. Step 2: Convert to fraction form
    145,957.96/218,510.46 = 131,950.36/x
  3. Step 3: Cross multiply
    145,957.96x = 218,510.46 × 131,950.36
  4. Step 4: Simplify right side
    145,957.96x = 28,832,533,860.77
  5. Step 5: Solve for x
    x = 28,832,533,860.77/145,957.96
  6. Step 6: Final answer
    x = 197,539.99

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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.