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Finding the Fourth Proportional to 58,918.80, 88,378.20 and 58,335.60

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Solution

The fourth proportional to 58,918.80, 88,378.20 and 58,335.60 is: 87,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,918.80 : 88,378.20 = 58,335.60 : x
  2. Step 2: Convert to fraction form
    58,918.80/88,378.20 = 58,335.60/x
  3. Step 3: Cross multiply
    58,918.80x = 88,378.20 × 58,335.60
  4. Step 4: Simplify right side
    58,918.80x = 5,155,595,323.92
  5. Step 5: Solve for x
    x = 5,155,595,323.92/58,918.80
  6. Step 6: Final answer
    x = 87,503.40

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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.