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Finding the Fourth Proportional to 101,518.98, 152,097.60 and 86,576.31

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Solution

The fourth proportional to 101,518.98, 152,097.60 and 86,576.31 is: 129,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,518.98 : 152,097.60 = 86,576.31 : x
  2. Step 2: Convert to fraction form
    101,518.98/152,097.60 = 86,576.31/x
  3. Step 3: Cross multiply
    101,518.98x = 152,097.60 × 86,576.31
  4. Step 4: Simplify right side
    101,518.98x = 13,168,048,967.86
  5. Step 5: Solve for x
    x = 13,168,048,967.86/101,518.98
  6. Step 6: Final answer
    x = 129,710.22

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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.