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Finding the Fourth Proportional to 157,813.85, 236,721.42 and 39,484.87

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Solution

The fourth proportional to 157,813.85, 236,721.42 and 39,484.87 is: 59,227.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,813.85 : 236,721.42 = 39,484.87 : x
  2. Step 2: Convert to fraction form
    157,813.85/236,721.42 = 39,484.87/x
  3. Step 3: Cross multiply
    157,813.85x = 236,721.42 × 39,484.87
  4. Step 4: Simplify right side
    157,813.85x = 9,346,913,903.11
  5. Step 5: Solve for x
    x = 9,346,913,903.11/157,813.85
  6. Step 6: Final answer
    x = 59,227.46

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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.