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Finding the Fourth Proportional to 99,606.19, 137,456.54 and 54,894.19

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Solution

The fourth proportional to 99,606.19, 137,456.54 and 54,894.19 is: 75,753.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,606.19 : 137,456.54 = 54,894.19 : x
  2. Step 2: Convert to fraction form
    99,606.19/137,456.54 = 54,894.19/x
  3. Step 3: Cross multiply
    99,606.19x = 137,456.54 × 54,894.19
  4. Step 4: Simplify right side
    99,606.19x = 7,545,565,423.50
  5. Step 5: Solve for x
    x = 7,545,565,423.50/99,606.19
  6. Step 6: Final answer
    x = 75,753.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.