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Finding the Fourth Proportional to 117,999.42, 162,838.35 and 64,284.42

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Solution

The fourth proportional to 117,999.42, 162,838.35 and 64,284.42 is: 88,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,999.42 : 162,838.35 = 64,284.42 : x
  2. Step 2: Convert to fraction form
    117,999.42/162,838.35 = 64,284.42/x
  3. Step 3: Cross multiply
    117,999.42x = 162,838.35 × 64,284.42
  4. Step 4: Simplify right side
    117,999.42x = 10,467,968,883.51
  5. Step 5: Solve for x
    x = 10,467,968,883.51/117,999.42
  6. Step 6: Final answer
    x = 88,712.04

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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.