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Finding the Fourth Proportional to 97,856.40, 146,938.20 and 56,384.40

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Solution

The fourth proportional to 97,856.40, 146,938.20 and 56,384.40 is: 84,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,856.40 : 146,938.20 = 56,384.40 : x
  2. Step 2: Convert to fraction form
    97,856.40/146,938.20 = 56,384.40/x
  3. Step 3: Cross multiply
    97,856.40x = 146,938.20 × 56,384.40
  4. Step 4: Simplify right side
    97,856.40x = 8,285,022,244.08
  5. Step 5: Solve for x
    x = 8,285,022,244.08/97,856.40
  6. Step 6: Final answer
    x = 84,665.10

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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.