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Finding the Fourth Proportional to 201,087.36, 301,358.88 and 76,360.32

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Solution

The fourth proportional to 201,087.36, 301,358.88 and 76,360.32 is: 114,437.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,087.36 : 301,358.88 = 76,360.32 : x
  2. Step 2: Convert to fraction form
    201,087.36/301,358.88 = 76,360.32/x
  3. Step 3: Cross multiply
    201,087.36x = 301,358.88 × 76,360.32
  4. Step 4: Simplify right side
    201,087.36x = 23,011,860,511.64
  5. Step 5: Solve for x
    x = 23,011,860,511.64/201,087.36
  6. Step 6: Final answer
    x = 114,437.13

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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.