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Finding the Fourth Proportional to 156,691.69, 235,130.93 and 56,859.67

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Solution

The fourth proportional to 156,691.69, 235,130.93 and 56,859.67 is: 85,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,691.69 : 235,130.93 = 56,859.67 : x
  2. Step 2: Convert to fraction form
    156,691.69/235,130.93 = 56,859.67/x
  3. Step 3: Cross multiply
    156,691.69x = 235,130.93 × 56,859.67
  4. Step 4: Simplify right side
    156,691.69x = 13,369,467,149.51
  5. Step 5: Solve for x
    x = 13,369,467,149.51/156,691.69
  6. Step 6: Final answer
    x = 85,323.40

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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.