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Finding the Fourth Proportional to 156,798.88, 235,234.80 and 51,618.76

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Solution

The fourth proportional to 156,798.88, 235,234.80 and 51,618.76 is: 77,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,798.88 : 235,234.80 = 51,618.76 : x
  2. Step 2: Convert to fraction form
    156,798.88/235,234.80 = 51,618.76/x
  3. Step 3: Cross multiply
    156,798.88x = 235,234.80 × 51,618.76
  4. Step 4: Simplify right side
    156,798.88x = 12,142,528,684.85
  5. Step 5: Solve for x
    x = 12,142,528,684.85/156,798.88
  6. Step 6: Final answer
    x = 77,440.15

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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.