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Finding the Fourth Proportional to 104,639.16, 156,748.32 and 48,400.32

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Solution

The fourth proportional to 104,639.16, 156,748.32 and 48,400.32 is: 72,503.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,639.16 : 156,748.32 = 48,400.32 : x
  2. Step 2: Convert to fraction form
    104,639.16/156,748.32 = 48,400.32/x
  3. Step 3: Cross multiply
    104,639.16x = 156,748.32 × 48,400.32
  4. Step 4: Simplify right side
    104,639.16x = 7,586,668,847.46
  5. Step 5: Solve for x
    x = 7,586,668,847.46/104,639.16
  6. Step 6: Final answer
    x = 72,503.15

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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.