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Finding the Fourth Proportional to 176,684.90, 264,638.55 and 156,985.70

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Solution

The fourth proportional to 176,684.90, 264,638.55 and 156,985.70 is: 235,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,684.90 : 264,638.55 = 156,985.70 : x
  2. Step 2: Convert to fraction form
    176,684.90/264,638.55 = 156,985.70/x
  3. Step 3: Cross multiply
    176,684.90x = 264,638.55 × 156,985.70
  4. Step 4: Simplify right side
    176,684.90x = 41,544,468,018.74
  5. Step 5: Solve for x
    x = 41,544,468,018.74/176,684.90
  6. Step 6: Final answer
    x = 235,133.10

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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.