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Finding the Fourth Proportional to 98,633.80, 147,950.70 and 82,887.40

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Solution

The fourth proportional to 98,633.80, 147,950.70 and 82,887.40 is: 124,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,633.80 : 147,950.70 = 82,887.40 : x
  2. Step 2: Convert to fraction form
    98,633.80/147,950.70 = 82,887.40/x
  3. Step 3: Cross multiply
    98,633.80x = 147,950.70 × 82,887.40
  4. Step 4: Simplify right side
    98,633.80x = 12,263,248,851.18
  5. Step 5: Solve for x
    x = 12,263,248,851.18/98,633.80
  6. Step 6: Final answer
    x = 124,331.10

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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.