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Finding the Fourth Proportional to 75,302.16, 112,966.20 and 40,232.40

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Solution

The fourth proportional to 75,302.16, 112,966.20 and 40,232.40 is: 60,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,302.16 : 112,966.20 = 40,232.40 : x
  2. Step 2: Convert to fraction form
    75,302.16/112,966.20 = 40,232.40/x
  3. Step 3: Cross multiply
    75,302.16x = 112,966.20 × 40,232.40
  4. Step 4: Simplify right side
    75,302.16x = 4,544,901,344.88
  5. Step 5: Solve for x
    x = 4,544,901,344.88/75,302.16
  6. Step 6: Final answer
    x = 60,355.52

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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.