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Finding the Fourth Proportional to 239,156.91, 358,779.50 and 98,926.47

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Solution

The fourth proportional to 239,156.91, 358,779.50 and 98,926.47 is: 148,407.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,156.91 : 358,779.50 = 98,926.47 : x
  2. Step 2: Convert to fraction form
    239,156.91/358,779.50 = 98,926.47/x
  3. Step 3: Cross multiply
    239,156.91x = 358,779.50 × 98,926.47
  4. Step 4: Simplify right side
    239,156.91x = 35,492,787,649.47
  5. Step 5: Solve for x
    x = 35,492,787,649.47/239,156.91
  6. Step 6: Final answer
    x = 148,407.96

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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.