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Finding the Fourth Proportional to 176,426.52, 243,450.95 and 99,930.26

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Solution

The fourth proportional to 176,426.52, 243,450.95 and 99,930.26 is: 137,893.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,426.52 : 243,450.95 = 99,930.26 : x
  2. Step 2: Convert to fraction form
    176,426.52/243,450.95 = 99,930.26/x
  3. Step 3: Cross multiply
    176,426.52x = 243,450.95 × 99,930.26
  4. Step 4: Simplify right side
    176,426.52x = 24,328,115,013.84
  5. Step 5: Solve for x
    x = 24,328,115,013.84/176,426.52
  6. Step 6: Final answer
    x = 137,893.75

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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.