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Finding the Fourth Proportional to 117,607.48, 176,410.38 and 47,485.72

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Solution

The fourth proportional to 117,607.48, 176,410.38 and 47,485.72 is: 71,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,607.48 : 176,410.38 = 47,485.72 : x
  2. Step 2: Convert to fraction form
    117,607.48/176,410.38 = 47,485.72/x
  3. Step 3: Cross multiply
    117,607.48x = 176,410.38 × 47,485.72
  4. Step 4: Simplify right side
    117,607.48x = 8,376,973,909.77
  5. Step 5: Solve for x
    x = 8,376,973,909.77/117,607.48
  6. Step 6: Final answer
    x = 71,228.24

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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.