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Finding the Fourth Proportional to 92,959.60, 128,283.89 and 52,681.04

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Solution

The fourth proportional to 92,959.60, 128,283.89 and 52,681.04 is: 72,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,959.60 : 128,283.89 = 52,681.04 : x
  2. Step 2: Convert to fraction form
    92,959.60/128,283.89 = 52,681.04/x
  3. Step 3: Cross multiply
    92,959.60x = 128,283.89 × 52,681.04
  4. Step 4: Simplify right side
    92,959.60x = 6,758,128,740.45
  5. Step 5: Solve for x
    x = 6,758,128,740.45/92,959.60
  6. Step 6: Final answer
    x = 72,699.63

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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.