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Finding the Fourth Proportional to 59,400.99, 89,102.61 and 19,419.99

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Solution

The fourth proportional to 59,400.99, 89,102.61 and 19,419.99 is: 29,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,400.99 : 89,102.61 = 19,419.99 : x
  2. Step 2: Convert to fraction form
    59,400.99/89,102.61 = 19,419.99/x
  3. Step 3: Cross multiply
    59,400.99x = 89,102.61 × 19,419.99
  4. Step 4: Simplify right side
    59,400.99x = 1,730,371,795.17
  5. Step 5: Solve for x
    x = 1,730,371,795.17/59,400.99
  6. Step 6: Final answer
    x = 29,130.35

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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.