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Finding the Fourth Proportional to 160,627.84, 221,663.82 and 89,007.64

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Solution

The fourth proportional to 160,627.84, 221,663.82 and 89,007.64 is: 122,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,627.84 : 221,663.82 = 89,007.64 : x
  2. Step 2: Convert to fraction form
    160,627.84/221,663.82 = 89,007.64/x
  3. Step 3: Cross multiply
    160,627.84x = 221,663.82 × 89,007.64
  4. Step 4: Simplify right side
    160,627.84x = 19,729,773,491.58
  5. Step 5: Solve for x
    x = 19,729,773,491.58/160,627.84
  6. Step 6: Final answer
    x = 122,829.10

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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.