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Finding the Fourth Proportional to 117,530.40, 176,468.40 and 82,624.80

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Solution

The fourth proportional to 117,530.40, 176,468.40 and 82,624.80 is: 124,058.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,530.40 : 176,468.40 = 82,624.80 : x
  2. Step 2: Convert to fraction form
    117,530.40/176,468.40 = 82,624.80/x
  3. Step 3: Cross multiply
    117,530.40x = 176,468.40 × 82,624.80
  4. Step 4: Simplify right side
    117,530.40x = 14,580,666,256.32
  5. Step 5: Solve for x
    x = 14,580,666,256.32/117,530.40
  6. Step 6: Final answer
    x = 124,058.68

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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.