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Finding the Fourth Proportional to 88,957.60, 122,731.68 and 51,231.04

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Solution

The fourth proportional to 88,957.60, 122,731.68 and 51,231.04 is: 70,681.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,957.60 : 122,731.68 = 51,231.04 : x
  2. Step 2: Convert to fraction form
    88,957.60/122,731.68 = 51,231.04/x
  3. Step 3: Cross multiply
    88,957.60x = 122,731.68 × 51,231.04
  4. Step 4: Simplify right side
    88,957.60x = 6,287,671,607.35
  5. Step 5: Solve for x
    x = 6,287,671,607.35/88,957.60
  6. Step 6: Final answer
    x = 70,681.67

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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.