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Finding the Fourth Proportional to 88,473.40, 132,386.10 and 65,145.40

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Solution

The fourth proportional to 88,473.40, 132,386.10 and 65,145.40 is: 97,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,473.40 : 132,386.10 = 65,145.40 : x
  2. Step 2: Convert to fraction form
    88,473.40/132,386.10 = 65,145.40/x
  3. Step 3: Cross multiply
    88,473.40x = 132,386.10 × 65,145.40
  4. Step 4: Simplify right side
    88,473.40x = 8,624,345,438.94
  5. Step 5: Solve for x
    x = 8,624,345,438.94/88,473.40
  6. Step 6: Final answer
    x = 97,479.53

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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.