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Finding the Fourth Proportional to 175,506.80, 242,178.51 and 99,021.49

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Solution

The fourth proportional to 175,506.80, 242,178.51 and 99,021.49 is: 136,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,506.80 : 242,178.51 = 99,021.49 : x
  2. Step 2: Convert to fraction form
    175,506.80/242,178.51 = 99,021.49/x
  3. Step 3: Cross multiply
    175,506.80x = 242,178.51 × 99,021.49
  4. Step 4: Simplify right side
    175,506.80x = 23,980,876,115.07
  5. Step 5: Solve for x
    x = 23,980,876,115.07/175,506.80
  6. Step 6: Final answer
    x = 136,637.87

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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.