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Finding the Fourth Proportional to 153,627.57, 211,885.86 and 99,929.73

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Solution

The fourth proportional to 153,627.57, 211,885.86 and 99,929.73 is: 137,824.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,627.57 : 211,885.86 = 99,929.73 : x
  2. Step 2: Convert to fraction form
    153,627.57/211,885.86 = 99,929.73/x
  3. Step 3: Cross multiply
    153,627.57x = 211,885.86 × 99,929.73
  4. Step 4: Simplify right side
    153,627.57x = 21,173,696,280.97
  5. Step 5: Solve for x
    x = 21,173,696,280.97/153,627.57
  6. Step 6: Final answer
    x = 137,824.85

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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.