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Finding the Fourth Proportional to 128,554.88, 192,957.03 and 62,041.86

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Solution

The fourth proportional to 128,554.88, 192,957.03 and 62,041.86 is: 93,122.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,554.88 : 192,957.03 = 62,041.86 : x
  2. Step 2: Convert to fraction form
    128,554.88/192,957.03 = 62,041.86/x
  3. Step 3: Cross multiply
    128,554.88x = 192,957.03 × 62,041.86
  4. Step 4: Simplify right side
    128,554.88x = 11,971,413,041.28
  5. Step 5: Solve for x
    x = 11,971,413,041.28/128,554.88
  6. Step 6: Final answer
    x = 93,122.98

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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.