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Finding the Fourth Proportional to 355,066.40, 532,599.60 and 102,346.40

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Solution

The fourth proportional to 355,066.40, 532,599.60 and 102,346.40 is: 153,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,066.40 : 532,599.60 = 102,346.40 : x
  2. Step 2: Convert to fraction form
    355,066.40/532,599.60 = 102,346.40/x
  3. Step 3: Cross multiply
    355,066.40x = 532,599.60 × 102,346.40
  4. Step 4: Simplify right side
    355,066.40x = 54,509,651,701.44
  5. Step 5: Solve for x
    x = 54,509,651,701.44/355,066.40
  6. Step 6: Final answer
    x = 153,519.60

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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.