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Finding the Fourth Proportional to 124,567.53, 171,912.47 and 70,869.89

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Solution

The fourth proportional to 124,567.53, 171,912.47 and 70,869.89 is: 97,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,567.53 : 171,912.47 = 70,869.89 : x
  2. Step 2: Convert to fraction form
    124,567.53/171,912.47 = 70,869.89/x
  3. Step 3: Cross multiply
    124,567.53x = 171,912.47 × 70,869.89
  4. Step 4: Simplify right side
    124,567.53x = 12,183,416,624.62
  5. Step 5: Solve for x
    x = 12,183,416,624.62/124,567.53
  6. Step 6: Final answer
    x = 97,805.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.