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Finding the Fourth Proportional to 152,729.40, 229,151.70 and 73,913.40

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Solution

The fourth proportional to 152,729.40, 229,151.70 and 73,913.40 is: 110,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,729.40 : 229,151.70 = 73,913.40 : x
  2. Step 2: Convert to fraction form
    152,729.40/229,151.70 = 73,913.40/x
  3. Step 3: Cross multiply
    152,729.40x = 229,151.70 × 73,913.40
  4. Step 4: Simplify right side
    152,729.40x = 16,937,381,262.78
  5. Step 5: Solve for x
    x = 16,937,381,262.78/152,729.40
  6. Step 6: Final answer
    x = 110,897.98

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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.