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Finding the Fourth Proportional to 156,549.42, 216,036.99 and 84,929.22

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Solution

The fourth proportional to 156,549.42, 216,036.99 and 84,929.22 is: 117,201.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,549.42 : 216,036.99 = 84,929.22 : x
  2. Step 2: Convert to fraction form
    156,549.42/216,036.99 = 84,929.22/x
  3. Step 3: Cross multiply
    156,549.42x = 216,036.99 × 84,929.22
  4. Step 4: Simplify right side
    156,549.42x = 18,347,853,051.85
  5. Step 5: Solve for x
    x = 18,347,853,051.85/156,549.42
  6. Step 6: Final answer
    x = 117,201.67

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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.