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Finding the Fourth Proportional to 141,458.88, 212,188.16 and 66,532.16

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Solution

The fourth proportional to 141,458.88, 212,188.16 and 66,532.16 is: 99,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,458.88 : 212,188.16 = 66,532.16 : x
  2. Step 2: Convert to fraction form
    141,458.88/212,188.16 = 66,532.16/x
  3. Step 3: Cross multiply
    141,458.88x = 212,188.16 × 66,532.16
  4. Step 4: Simplify right side
    141,458.88x = 14,117,336,611.23
  5. Step 5: Solve for x
    x = 14,117,336,611.23/141,458.88
  6. Step 6: Final answer
    x = 99,798.16

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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.