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Finding the Fourth Proportional to 99,557.88, 148,985.85 and 62,135.49

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Solution

The fourth proportional to 99,557.88, 148,985.85 and 62,135.49 is: 92,984.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,557.88 : 148,985.85 = 62,135.49 : x
  2. Step 2: Convert to fraction form
    99,557.88/148,985.85 = 62,135.49/x
  3. Step 3: Cross multiply
    99,557.88x = 148,985.85 × 62,135.49
  4. Step 4: Simplify right side
    99,557.88x = 9,257,308,792.82
  5. Step 5: Solve for x
    x = 9,257,308,792.82/99,557.88
  6. Step 6: Final answer
    x = 92,984.19

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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.