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Finding the Fourth Proportional to 118,010.57, 162,856.45 and 64,295.57

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Solution

The fourth proportional to 118,010.57, 162,856.45 and 64,295.57 is: 88,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,010.57 : 162,856.45 = 64,295.57 : x
  2. Step 2: Convert to fraction form
    118,010.57/162,856.45 = 64,295.57/x
  3. Step 3: Cross multiply
    118,010.57x = 162,856.45 × 64,295.57
  4. Step 4: Simplify right side
    118,010.57x = 10,470,948,280.93
  5. Step 5: Solve for x
    x = 10,470,948,280.93/118,010.57
  6. Step 6: Final answer
    x = 88,728.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.