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Finding the Fourth Proportional to 115,038.70, 172,455.45 and 44,901.70

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Solution

The fourth proportional to 115,038.70, 172,455.45 and 44,901.70 is: 67,312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,038.70 : 172,455.45 = 44,901.70 : x
  2. Step 2: Convert to fraction form
    115,038.70/172,455.45 = 44,901.70/x
  3. Step 3: Cross multiply
    115,038.70x = 172,455.45 × 44,901.70
  4. Step 4: Simplify right side
    115,038.70x = 7,743,542,879.27
  5. Step 5: Solve for x
    x = 7,743,542,879.27/115,038.70
  6. Step 6: Final answer
    x = 67,312.50

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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.