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Finding the Fourth Proportional to 98,985.99, 148,408.47 and 46,366.77

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Solution

The fourth proportional to 98,985.99, 148,408.47 and 46,366.77 is: 69,517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,985.99 : 148,408.47 = 46,366.77 : x
  2. Step 2: Convert to fraction form
    98,985.99/148,408.47 = 46,366.77/x
  3. Step 3: Cross multiply
    98,985.99x = 148,408.47 × 46,366.77
  4. Step 4: Simplify right side
    98,985.99x = 6,881,221,394.54
  5. Step 5: Solve for x
    x = 6,881,221,394.54/98,985.99
  6. Step 6: Final answer
    x = 69,517.12

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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.