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Finding the Fourth Proportional to 144,429.80, 216,644.70 and 97,190.60

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Solution

The fourth proportional to 144,429.80, 216,644.70 and 97,190.60 is: 145,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,429.80 : 216,644.70 = 97,190.60 : x
  2. Step 2: Convert to fraction form
    144,429.80/216,644.70 = 97,190.60/x
  3. Step 3: Cross multiply
    144,429.80x = 216,644.70 × 97,190.60
  4. Step 4: Simplify right side
    144,429.80x = 21,055,828,379.82
  5. Step 5: Solve for x
    x = 21,055,828,379.82/144,429.80
  6. Step 6: Final answer
    x = 145,785.90

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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.