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Finding the Fourth Proportional to 156,237.99, 215,608.59 and 84,618.11

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Solution

The fourth proportional to 156,237.99, 215,608.59 and 84,618.11 is: 116,773.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,237.99 : 215,608.59 = 84,618.11 : x
  2. Step 2: Convert to fraction form
    156,237.99/215,608.59 = 84,618.11/x
  3. Step 3: Cross multiply
    156,237.99x = 215,608.59 × 84,618.11
  4. Step 4: Simplify right side
    156,237.99x = 18,244,390,307.52
  5. Step 5: Solve for x
    x = 18,244,390,307.52/156,237.99
  6. Step 6: Final answer
    x = 116,773.07

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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.