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Finding the Fourth Proportional to 456,125.70, 684,334.35 and 156,798.30

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Solution

The fourth proportional to 456,125.70, 684,334.35 and 156,798.30 is: 235,247.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,125.70 : 684,334.35 = 156,798.30 : x
  2. Step 2: Convert to fraction form
    456,125.70/684,334.35 = 156,798.30/x
  3. Step 3: Cross multiply
    456,125.70x = 684,334.35 × 156,798.30
  4. Step 4: Simplify right side
    456,125.70x = 107,302,462,711.61
  5. Step 5: Solve for x
    x = 107,302,462,711.61/456,125.70
  6. Step 6: Final answer
    x = 235,247.57

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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.