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Finding the Fourth Proportional to 228,567.80, 342,851.70 and 80,823.80

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Solution

The fourth proportional to 228,567.80, 342,851.70 and 80,823.80 is: 121,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,567.80 : 342,851.70 = 80,823.80 : x
  2. Step 2: Convert to fraction form
    228,567.80/342,851.70 = 80,823.80/x
  3. Step 3: Cross multiply
    228,567.80x = 342,851.70 × 80,823.80
  4. Step 4: Simplify right side
    228,567.80x = 27,710,577,230.46
  5. Step 5: Solve for x
    x = 27,710,577,230.46/228,567.80
  6. Step 6: Final answer
    x = 121,235.70

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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.