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Finding the Fourth Proportional to 96,686.80, 145,044.60 and 34,352.40

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Solution

The fourth proportional to 96,686.80, 145,044.60 and 34,352.40 is: 51,533.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,686.80 : 145,044.60 = 34,352.40 : x
  2. Step 2: Convert to fraction form
    96,686.80/145,044.60 = 34,352.40/x
  3. Step 3: Cross multiply
    96,686.80x = 145,044.60 × 34,352.40
  4. Step 4: Simplify right side
    96,686.80x = 4,982,630,117.04
  5. Step 5: Solve for x
    x = 4,982,630,117.04/96,686.80
  6. Step 6: Final answer
    x = 51,533.72

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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.