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Finding the Fourth Proportional to 78,975.94, 118,482.64 and 23,570.50

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Solution

The fourth proportional to 78,975.94, 118,482.64 and 23,570.50 is: 35,361.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,975.94 : 118,482.64 = 23,570.50 : x
  2. Step 2: Convert to fraction form
    78,975.94/118,482.64 = 23,570.50/x
  3. Step 3: Cross multiply
    78,975.94x = 118,482.64 × 23,570.50
  4. Step 4: Simplify right side
    78,975.94x = 2,792,695,066.12
  5. Step 5: Solve for x
    x = 2,792,695,066.12/78,975.94
  6. Step 6: Final answer
    x = 35,361.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.