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Finding the Fourth Proportional to 64,478.51, 88,980.39 and 36,184.19

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Solution

The fourth proportional to 64,478.51, 88,980.39 and 36,184.19 is: 49,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.51 : 88,980.39 = 36,184.19 : x
  2. Step 2: Convert to fraction form
    64,478.51/88,980.39 = 36,184.19/x
  3. Step 3: Cross multiply
    64,478.51x = 88,980.39 × 36,184.19
  4. Step 4: Simplify right side
    64,478.51x = 3,219,683,157.11
  5. Step 5: Solve for x
    x = 3,219,683,157.11/64,478.51
  6. Step 6: Final answer
    x = 49,934.21

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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.