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Finding the Fourth Proportional to 156,723.40, 235,106.70 and 56,859.40

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Solution

The fourth proportional to 156,723.40, 235,106.70 and 56,859.40 is: 85,296.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,723.40 : 235,106.70 = 56,859.40 : x
  2. Step 2: Convert to fraction form
    156,723.40/235,106.70 = 56,859.40/x
  3. Step 3: Cross multiply
    156,723.40x = 235,106.70 × 56,859.40
  4. Step 4: Simplify right side
    156,723.40x = 13,368,025,897.98
  5. Step 5: Solve for x
    x = 13,368,025,897.98/156,723.40
  6. Step 6: Final answer
    x = 85,296.94

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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.