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Finding the Fourth Proportional to 109,337.80, 164,006.70 and 98,840.20

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Solution

The fourth proportional to 109,337.80, 164,006.70 and 98,840.20 is: 148,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,337.80 : 164,006.70 = 98,840.20 : x
  2. Step 2: Convert to fraction form
    109,337.80/164,006.70 = 98,840.20/x
  3. Step 3: Cross multiply
    109,337.80x = 164,006.70 × 98,840.20
  4. Step 4: Simplify right side
    109,337.80x = 16,210,455,029.34
  5. Step 5: Solve for x
    x = 16,210,455,029.34/109,337.80
  6. Step 6: Final answer
    x = 148,260.30

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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.