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Finding the Fourth Proportional to 64,849.53, 97,252.43 and 42,780.27

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Solution

The fourth proportional to 64,849.53, 97,252.43 and 42,780.27 is: 64,155.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,849.53 : 97,252.43 = 42,780.27 : x
  2. Step 2: Convert to fraction form
    64,849.53/97,252.43 = 42,780.27/x
  3. Step 3: Cross multiply
    64,849.53x = 97,252.43 × 42,780.27
  4. Step 4: Simplify right side
    64,849.53x = 4,160,484,999.65
  5. Step 5: Solve for x
    x = 4,160,484,999.65/64,849.53
  6. Step 6: Final answer
    x = 64,155.98

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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.