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Finding the Fourth Proportional to 153,528.66, 211,915.17 and 96,977.70

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Solution

The fourth proportional to 153,528.66, 211,915.17 and 96,977.70 is: 133,858.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,528.66 : 211,915.17 = 96,977.70 : x
  2. Step 2: Convert to fraction form
    153,528.66/211,915.17 = 96,977.70/x
  3. Step 3: Cross multiply
    153,528.66x = 211,915.17 × 96,977.70
  4. Step 4: Simplify right side
    153,528.66x = 20,551,045,781.71
  5. Step 5: Solve for x
    x = 20,551,045,781.71/153,528.66
  6. Step 6: Final answer
    x = 133,858.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.