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Finding the Fourth Proportional to 99,124.44, 136,905.30 and 65,284.26

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Solution

The fourth proportional to 99,124.44, 136,905.30 and 65,284.26 is: 90,167.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,124.44 : 136,905.30 = 65,284.26 : x
  2. Step 2: Convert to fraction form
    99,124.44/136,905.30 = 65,284.26/x
  3. Step 3: Cross multiply
    99,124.44x = 136,905.30 × 65,284.26
  4. Step 4: Simplify right side
    99,124.44x = 8,937,761,200.58
  5. Step 5: Solve for x
    x = 8,937,761,200.58/99,124.44
  6. Step 6: Final answer
    x = 90,167.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.