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Finding the Fourth Proportional to 98,073.90, 146,970.50 and 55,866.88

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Solution

The fourth proportional to 98,073.90, 146,970.50 and 55,866.88 is: 83,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,073.90 : 146,970.50 = 55,866.88 : x
  2. Step 2: Convert to fraction form
    98,073.90/146,970.50 = 55,866.88/x
  3. Step 3: Cross multiply
    98,073.90x = 146,970.50 × 55,866.88
  4. Step 4: Simplify right side
    98,073.90x = 8,210,783,191.42
  5. Step 5: Solve for x
    x = 8,210,783,191.42/98,073.90
  6. Step 6: Final answer
    x = 83,720.37

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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.