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Finding the Fourth Proportional to 196,641.80, 294,962.70 and 84,302.90

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Solution

The fourth proportional to 196,641.80, 294,962.70 and 84,302.90 is: 126,454.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,641.80 : 294,962.70 = 84,302.90 : x
  2. Step 2: Convert to fraction form
    196,641.80/294,962.70 = 84,302.90/x
  3. Step 3: Cross multiply
    196,641.80x = 294,962.70 × 84,302.90
  4. Step 4: Simplify right side
    196,641.80x = 24,866,211,001.83
  5. Step 5: Solve for x
    x = 24,866,211,001.83/196,641.80
  6. Step 6: Final answer
    x = 126,454.35

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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.