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Finding the Fourth Proportional to 98,625.80, 147,938.70 and 56,635.40

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Solution

The fourth proportional to 98,625.80, 147,938.70 and 56,635.40 is: 84,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,625.80 : 147,938.70 = 56,635.40 : x
  2. Step 2: Convert to fraction form
    98,625.80/147,938.70 = 56,635.40/x
  3. Step 3: Cross multiply
    98,625.80x = 147,938.70 × 56,635.40
  4. Step 4: Simplify right side
    98,625.80x = 8,378,567,449.98
  5. Step 5: Solve for x
    x = 8,378,567,449.98/98,625.80
  6. Step 6: Final answer
    x = 84,953.10

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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.