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Finding the Fourth Proportional to 117,937.40, 176,646.90 and 102,385.40

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Solution

The fourth proportional to 117,937.40, 176,646.90 and 102,385.40 is: 153,353.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,937.40 : 176,646.90 = 102,385.40 : x
  2. Step 2: Convert to fraction form
    117,937.40/176,646.90 = 102,385.40/x
  3. Step 3: Cross multiply
    117,937.40x = 176,646.90 × 102,385.40
  4. Step 4: Simplify right side
    117,937.40x = 18,086,063,515.26
  5. Step 5: Solve for x
    x = 18,086,063,515.26/117,937.40
  6. Step 6: Final answer
    x = 153,353.08

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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.