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Finding the Fourth Proportional to 88,987.55, 122,802.87 and 48,701.29

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Solution

The fourth proportional to 88,987.55, 122,802.87 and 48,701.29 is: 67,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,987.55 : 122,802.87 = 48,701.29 : x
  2. Step 2: Convert to fraction form
    88,987.55/122,802.87 = 48,701.29/x
  3. Step 3: Cross multiply
    88,987.55x = 122,802.87 × 48,701.29
  4. Step 4: Simplify right side
    88,987.55x = 5,980,657,941.20
  5. Step 5: Solve for x
    x = 5,980,657,941.20/88,987.55
  6. Step 6: Final answer
    x = 67,207.81

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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.