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Finding the Fourth Proportional to 117,281.88, 161,848.32 and 63,566.32

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Solution

The fourth proportional to 117,281.88, 161,848.32 and 63,566.32 is: 87,721.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,281.88 : 161,848.32 = 63,566.32 : x
  2. Step 2: Convert to fraction form
    117,281.88/161,848.32 = 63,566.32/x
  3. Step 3: Cross multiply
    117,281.88x = 161,848.32 × 63,566.32
  4. Step 4: Simplify right side
    117,281.88x = 10,288,102,100.58
  5. Step 5: Solve for x
    x = 10,288,102,100.58/117,281.88
  6. Step 6: Final answer
    x = 87,721.16

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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.