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Finding the Fourth Proportional to 176,430.30, 264,645.45 and 161,915.10

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Solution

The fourth proportional to 176,430.30, 264,645.45 and 161,915.10 is: 242,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,430.30 : 264,645.45 = 161,915.10 : x
  2. Step 2: Convert to fraction form
    176,430.30/264,645.45 = 161,915.10/x
  3. Step 3: Cross multiply
    176,430.30x = 264,645.45 × 161,915.10
  4. Step 4: Simplify right side
    176,430.30x = 42,850,094,501.30
  5. Step 5: Solve for x
    x = 42,850,094,501.30/176,430.30
  6. Step 6: Final answer
    x = 242,872.65

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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.