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Finding the Fourth Proportional to 88,988.58, 122,792.12 and 53,171.02

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Solution

The fourth proportional to 88,988.58, 122,792.12 and 53,171.02 is: 73,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,988.58 : 122,792.12 = 53,171.02 : x
  2. Step 2: Convert to fraction form
    88,988.58/122,792.12 = 53,171.02/x
  3. Step 3: Cross multiply
    88,988.58x = 122,792.12 × 53,171.02
  4. Step 4: Simplify right side
    88,988.58x = 6,528,982,268.36
  5. Step 5: Solve for x
    x = 6,528,982,268.36/88,988.58
  6. Step 6: Final answer
    x = 73,368.77

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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.