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Finding the Fourth Proportional to 156,615.15, 234,758.70 and 61,808.70

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Solution

The fourth proportional to 156,615.15, 234,758.70 and 61,808.70 is: 92,648.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,615.15 : 234,758.70 = 61,808.70 : x
  2. Step 2: Convert to fraction form
    156,615.15/234,758.70 = 61,808.70/x
  3. Step 3: Cross multiply
    156,615.15x = 234,758.70 × 61,808.70
  4. Step 4: Simplify right side
    156,615.15x = 14,510,130,060.69
  5. Step 5: Solve for x
    x = 14,510,130,060.69/156,615.15
  6. Step 6: Final answer
    x = 92,648.32

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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.