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Finding the Fourth Proportional to 96,603.80, 144,905.70 and 69,992.60

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Solution

The fourth proportional to 96,603.80, 144,905.70 and 69,992.60 is: 104,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,603.80 : 144,905.70 = 69,992.60 : x
  2. Step 2: Convert to fraction form
    96,603.80/144,905.70 = 69,992.60/x
  3. Step 3: Cross multiply
    96,603.80x = 144,905.70 × 69,992.60
  4. Step 4: Simplify right side
    96,603.80x = 10,142,326,697.82
  5. Step 5: Solve for x
    x = 10,142,326,697.82/96,603.80
  6. Step 6: Final answer
    x = 104,988.90

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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.