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Finding the Fourth Proportional to 358,508.19, 538,094.79 and 181,139.76

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Solution

The fourth proportional to 358,508.19, 538,094.79 and 181,139.76 is: 271,877.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,508.19 : 538,094.79 = 181,139.76 : x
  2. Step 2: Convert to fraction form
    358,508.19/538,094.79 = 181,139.76/x
  3. Step 3: Cross multiply
    358,508.19x = 538,094.79 × 181,139.76
  4. Step 4: Simplify right side
    358,508.19x = 97,470,361,117.85
  5. Step 5: Solve for x
    x = 97,470,361,117.85/358,508.19
  6. Step 6: Final answer
    x = 271,877.64

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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.