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Finding the Fourth Proportional to 117,000.90, 175,501.35 and 72,483.30

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Solution

The fourth proportional to 117,000.90, 175,501.35 and 72,483.30 is: 108,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,000.90 : 175,501.35 = 72,483.30 : x
  2. Step 2: Convert to fraction form
    117,000.90/175,501.35 = 72,483.30/x
  3. Step 3: Cross multiply
    117,000.90x = 175,501.35 × 72,483.30
  4. Step 4: Simplify right side
    117,000.90x = 12,720,917,002.46
  5. Step 5: Solve for x
    x = 12,720,917,002.46/117,000.90
  6. Step 6: Final answer
    x = 108,724.95

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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.