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Finding the Fourth Proportional to 98,518.39, 147,798.35 and 31,953.34

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Solution

The fourth proportional to 98,518.39, 147,798.35 and 31,953.34 is: 47,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,518.39 : 147,798.35 = 31,953.34 : x
  2. Step 2: Convert to fraction form
    98,518.39/147,798.35 = 31,953.34/x
  3. Step 3: Cross multiply
    98,518.39x = 147,798.35 × 31,953.34
  4. Step 4: Simplify right side
    98,518.39x = 4,722,651,045.69
  5. Step 5: Solve for x
    x = 4,722,651,045.69/98,518.39
  6. Step 6: Final answer
    x = 47,936.75

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1.5x scale

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.