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Finding the Fourth Proportional to 178,155.72, 245,859.36 and 97,586.64

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Solution

The fourth proportional to 178,155.72, 245,859.36 and 97,586.64 is: 134,672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,155.72 : 245,859.36 = 97,586.64 : x
  2. Step 2: Convert to fraction form
    178,155.72/245,859.36 = 97,586.64/x
  3. Step 3: Cross multiply
    178,155.72x = 245,859.36 × 97,586.64
  4. Step 4: Simplify right side
    178,155.72x = 23,992,588,854.95
  5. Step 5: Solve for x
    x = 23,992,588,854.95/178,155.72
  6. Step 6: Final answer
    x = 134,672.01

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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.