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Finding the Fourth Proportional to 66,096.86, 99,148.94 and 42,870.92

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Solution

The fourth proportional to 66,096.86, 99,148.94 and 42,870.92 is: 64,308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,096.86 : 99,148.94 = 42,870.92 : x
  2. Step 2: Convert to fraction form
    66,096.86/99,148.94 = 42,870.92/x
  3. Step 3: Cross multiply
    66,096.86x = 99,148.94 × 42,870.92
  4. Step 4: Simplify right side
    66,096.86x = 4,250,605,564.73
  5. Step 5: Solve for x
    x = 4,250,605,564.73/66,096.86
  6. Step 6: Final answer
    x = 64,308.74

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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.