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Finding the Fourth Proportional to 245,988.40, 369,047.40 and 88,200.40

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Solution

The fourth proportional to 245,988.40, 369,047.40 and 88,200.40 is: 132,323.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,988.40 : 369,047.40 = 88,200.40 : x
  2. Step 2: Convert to fraction form
    245,988.40/369,047.40 = 88,200.40/x
  3. Step 3: Cross multiply
    245,988.40x = 369,047.40 × 88,200.40
  4. Step 4: Simplify right side
    245,988.40x = 32,550,128,298.96
  5. Step 5: Solve for x
    x = 32,550,128,298.96/245,988.40
  6. Step 6: Final answer
    x = 132,323.83

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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.