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Finding the Fourth Proportional to 178,065.45, 245,749.86 and 113,536.98

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Solution

The fourth proportional to 178,065.45, 245,749.86 and 113,536.98 is: 156,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,065.45 : 245,749.86 = 113,536.98 : x
  2. Step 2: Convert to fraction form
    178,065.45/245,749.86 = 113,536.98/x
  3. Step 3: Cross multiply
    178,065.45x = 245,749.86 × 113,536.98
  4. Step 4: Simplify right side
    178,065.45x = 27,901,696,939.82
  5. Step 5: Solve for x
    x = 27,901,696,939.82/178,065.45
  6. Step 6: Final answer
    x = 156,693.49

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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.