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Finding the Fourth Proportional to 70,102.62, 105,017.76 and 62,248.86

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Solution

The fourth proportional to 70,102.62, 105,017.76 and 62,248.86 is: 93,252.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,102.62 : 105,017.76 = 62,248.86 : x
  2. Step 2: Convert to fraction form
    70,102.62/105,017.76 = 62,248.86/x
  3. Step 3: Cross multiply
    70,102.62x = 105,017.76 × 62,248.86
  4. Step 4: Simplify right side
    70,102.62x = 6,537,235,839.75
  5. Step 5: Solve for x
    x = 6,537,235,839.75/70,102.62
  6. Step 6: Final answer
    x = 93,252.38

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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.