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Finding the Fourth Proportional to 152,173.94, 228,073.95 and 85,473.86

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Solution

The fourth proportional to 152,173.94, 228,073.95 and 85,473.86 is: 128,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,173.94 : 228,073.95 = 85,473.86 : x
  2. Step 2: Convert to fraction form
    152,173.94/228,073.95 = 85,473.86/x
  3. Step 3: Cross multiply
    152,173.94x = 228,073.95 × 85,473.86
  4. Step 4: Simplify right side
    152,173.94x = 19,494,359,731.58
  5. Step 5: Solve for x
    x = 19,494,359,731.58/152,173.94
  6. Step 6: Final answer
    x = 128,105.77

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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.