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Finding the Fourth Proportional to 178,618.76, 246,484.98 and 103,162.76

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Solution

The fourth proportional to 178,618.76, 246,484.98 and 103,162.76 is: 142,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,618.76 : 246,484.98 = 103,162.76 : x
  2. Step 2: Convert to fraction form
    178,618.76/246,484.98 = 103,162.76/x
  3. Step 3: Cross multiply
    178,618.76x = 246,484.98 × 103,162.76
  4. Step 4: Simplify right side
    178,618.76x = 25,428,070,835.34
  5. Step 5: Solve for x
    x = 25,428,070,835.34/178,618.76
  6. Step 6: Final answer
    x = 142,359.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.