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Finding the Fourth Proportional to 110,451.19, 152,415.39 and 65,126.98

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Solution

The fourth proportional to 110,451.19, 152,415.39 and 65,126.98 is: 89,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,451.19 : 152,415.39 = 65,126.98 : x
  2. Step 2: Convert to fraction form
    110,451.19/152,415.39 = 65,126.98/x
  3. Step 3: Cross multiply
    110,451.19x = 152,415.39 × 65,126.98
  4. Step 4: Simplify right side
    110,451.19x = 9,926,352,968.51
  5. Step 5: Solve for x
    x = 9,926,352,968.51/110,451.19
  6. Step 6: Final answer
    x = 89,870.95

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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.