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Finding the Fourth Proportional to 144,493.80, 216,675.90 and 65,567.40

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Solution

The fourth proportional to 144,493.80, 216,675.90 and 65,567.40 is: 98,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,493.80 : 216,675.90 = 65,567.40 : x
  2. Step 2: Convert to fraction form
    144,493.80/216,675.90 = 65,567.40/x
  3. Step 3: Cross multiply
    144,493.80x = 216,675.90 × 65,567.40
  4. Step 4: Simplify right side
    144,493.80x = 14,206,875,405.66
  5. Step 5: Solve for x
    x = 14,206,875,405.66/144,493.80
  6. Step 6: Final answer
    x = 98,321.70

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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.