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Finding the Fourth Proportional to 131,456.70, 197,206.65 and 56,612.70

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Solution

The fourth proportional to 131,456.70, 197,206.65 and 56,612.70 is: 84,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,456.70 : 197,206.65 = 56,612.70 : x
  2. Step 2: Convert to fraction form
    131,456.70/197,206.65 = 56,612.70/x
  3. Step 3: Cross multiply
    131,456.70x = 197,206.65 × 56,612.70
  4. Step 4: Simplify right side
    131,456.70x = 11,164,400,914.46
  5. Step 5: Solve for x
    x = 11,164,400,914.46/131,456.70
  6. Step 6: Final answer
    x = 84,928.35

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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.