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Finding the Fourth Proportional to 114,877.20, 172,315.80 and 62,389.20

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Solution

The fourth proportional to 114,877.20, 172,315.80 and 62,389.20 is: 93,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,877.20 : 172,315.80 = 62,389.20 : x
  2. Step 2: Convert to fraction form
    114,877.20/172,315.80 = 62,389.20/x
  3. Step 3: Cross multiply
    114,877.20x = 172,315.80 × 62,389.20
  4. Step 4: Simplify right side
    114,877.20x = 10,750,644,909.36
  5. Step 5: Solve for x
    x = 10,750,644,909.36/114,877.20
  6. Step 6: Final answer
    x = 93,583.80

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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.