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Finding the Fourth Proportional to 61,973.20, 92,959.80 and 57,696.40

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Solution

The fourth proportional to 61,973.20, 92,959.80 and 57,696.40 is: 86,544.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,973.20 : 92,959.80 = 57,696.40 : x
  2. Step 2: Convert to fraction form
    61,973.20/92,959.80 = 57,696.40/x
  3. Step 3: Cross multiply
    61,973.20x = 92,959.80 × 57,696.40
  4. Step 4: Simplify right side
    61,973.20x = 5,363,445,804.72
  5. Step 5: Solve for x
    x = 5,363,445,804.72/61,973.20
  6. Step 6: Final answer
    x = 86,544.60

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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.