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Finding the Fourth Proportional to 98,894, 148,359.60 and 39,734.40

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Solution

The fourth proportional to 98,894, 148,359.60 and 39,734.40 is: 59,609.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,894 : 148,359.60 = 39,734.40 : x
  2. Step 2: Convert to fraction form
    98,894/148,359.60 = 39,734.40/x
  3. Step 3: Cross multiply
    98,894x = 148,359.60 × 39,734.40
  4. Step 4: Simplify right side
    98,894x = 5,894,979,690.24
  5. Step 5: Solve for x
    x = 5,894,979,690.24/98,894
  6. Step 6: Final answer
    x = 59,609.07

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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.