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Finding the Fourth Proportional to 118,835.16, 163,992.52 and 68,534.16

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Solution

The fourth proportional to 118,835.16, 163,992.52 and 68,534.16 is: 94,577.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,835.16 : 163,992.52 = 68,534.16 : x
  2. Step 2: Convert to fraction form
    118,835.16/163,992.52 = 68,534.16/x
  3. Step 3: Cross multiply
    118,835.16x = 163,992.52 × 68,534.16
  4. Step 4: Simplify right side
    118,835.16x = 11,239,089,075.18
  5. Step 5: Solve for x
    x = 11,239,089,075.18/118,835.16
  6. Step 6: Final answer
    x = 94,577.14

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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.