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Finding the Fourth Proportional to 63,903.63, 88,129.71 and 40,032.93

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Solution

The fourth proportional to 63,903.63, 88,129.71 and 40,032.93 is: 55,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,903.63 : 88,129.71 = 40,032.93 : x
  2. Step 2: Convert to fraction form
    63,903.63/88,129.71 = 40,032.93/x
  3. Step 3: Cross multiply
    63,903.63x = 88,129.71 × 40,032.93
  4. Step 4: Simplify right side
    63,903.63x = 3,528,090,511.35
  5. Step 5: Solve for x
    x = 3,528,090,511.35/63,903.63
  6. Step 6: Final answer
    x = 55,209.55

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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.