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Finding the Fourth Proportional to 104,349.65, 156,522.95 and 72,299.16

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Solution

The fourth proportional to 104,349.65, 156,522.95 and 72,299.16 is: 108,447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,349.65 : 156,522.95 = 72,299.16 : x
  2. Step 2: Convert to fraction form
    104,349.65/156,522.95 = 72,299.16/x
  3. Step 3: Cross multiply
    104,349.65x = 156,522.95 × 72,299.16
  4. Step 4: Simplify right side
    104,349.65x = 11,316,477,715.35
  5. Step 5: Solve for x
    x = 11,316,477,715.35/104,349.65
  6. Step 6: Final answer
    x = 108,447.69

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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.