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Finding the Fourth Proportional to 423,253.80, 634,847.58 and 123,737.16

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Solution

The fourth proportional to 423,253.80, 634,847.58 and 123,737.16 is: 185,596.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,253.80 : 634,847.58 = 123,737.16 : x
  2. Step 2: Convert to fraction form
    423,253.80/634,847.58 = 123,737.16/x
  3. Step 3: Cross multiply
    423,253.80x = 634,847.58 × 123,737.16
  4. Step 4: Simplify right side
    423,253.80x = 78,554,236,582.07
  5. Step 5: Solve for x
    x = 78,554,236,582.07/423,253.80
  6. Step 6: Final answer
    x = 185,596.06

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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.