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Finding the Fourth Proportional to 152,591.50, 228,899.70 and 76,650.98

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Solution

The fourth proportional to 152,591.50, 228,899.70 and 76,650.98 is: 114,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,591.50 : 228,899.70 = 76,650.98 : x
  2. Step 2: Convert to fraction form
    152,591.50/228,899.70 = 76,650.98/x
  3. Step 3: Cross multiply
    152,591.50x = 228,899.70 × 76,650.98
  4. Step 4: Simplify right side
    152,591.50x = 17,545,386,326.71
  5. Step 5: Solve for x
    x = 17,545,386,326.71/152,591.50
  6. Step 6: Final answer
    x = 114,982.72

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1.5x scale

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.