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Finding the Fourth Proportional to 99,279.46, 137,006.56 and 53,957.56

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Solution

The fourth proportional to 99,279.46, 137,006.56 and 53,957.56 is: 74,461.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,279.46 : 137,006.56 = 53,957.56 : x
  2. Step 2: Convert to fraction form
    99,279.46/137,006.56 = 53,957.56/x
  3. Step 3: Cross multiply
    99,279.46x = 137,006.56 × 53,957.56
  4. Step 4: Simplify right side
    99,279.46x = 7,392,539,681.59
  5. Step 5: Solve for x
    x = 7,392,539,681.59/99,279.46
  6. Step 6: Final answer
    x = 74,461.92

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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.