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Finding the Fourth Proportional to 113,999.90, 170,999.85 and 93,004.70

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Solution

The fourth proportional to 113,999.90, 170,999.85 and 93,004.70 is: 139,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,999.90 : 170,999.85 = 93,004.70 : x
  2. Step 2: Convert to fraction form
    113,999.90/170,999.85 = 93,004.70/x
  3. Step 3: Cross multiply
    113,999.90x = 170,999.85 × 93,004.70
  4. Step 4: Simplify right side
    113,999.90x = 15,903,789,749.30
  5. Step 5: Solve for x
    x = 15,903,789,749.30/113,999.90
  6. Step 6: Final answer
    x = 139,507.05

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1.5x scale

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.