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Finding the Fourth Proportional to 104,643.16, 156,754.32 and 48,404.32

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Solution

The fourth proportional to 104,643.16, 156,754.32 and 48,404.32 is: 72,509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,643.16 : 156,754.32 = 48,404.32 : x
  2. Step 2: Convert to fraction form
    104,643.16/156,754.32 = 48,404.32/x
  3. Step 3: Cross multiply
    104,643.16x = 156,754.32 × 48,404.32
  4. Step 4: Simplify right side
    104,643.16x = 7,587,586,266.66
  5. Step 5: Solve for x
    x = 7,587,586,266.66/104,643.16
  6. Step 6: Final answer
    x = 72,509.15

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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.