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Finding the Fourth Proportional to 161,801.70, 242,605.35 and 83,069.70

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Solution

The fourth proportional to 161,801.70, 242,605.35 and 83,069.70 is: 124,554.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,801.70 : 242,605.35 = 83,069.70 : x
  2. Step 2: Convert to fraction form
    161,801.70/242,605.35 = 83,069.70/x
  3. Step 3: Cross multiply
    161,801.70x = 242,605.35 × 83,069.70
  4. Step 4: Simplify right side
    161,801.70x = 20,153,153,642.90
  5. Step 5: Solve for x
    x = 20,153,153,642.90/161,801.70
  6. Step 6: Final answer
    x = 124,554.65

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1.5x scale

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.