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Finding the Fourth Proportional to 98,518.60, 147,798.67 and 31,953.56

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Solution

The fourth proportional to 98,518.60, 147,798.67 and 31,953.56 is: 47,937.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,518.60 : 147,798.67 = 31,953.56 : x
  2. Step 2: Convert to fraction form
    98,518.60/147,798.67 = 31,953.56/x
  3. Step 3: Cross multiply
    98,518.60x = 147,798.67 × 31,953.56
  4. Step 4: Simplify right side
    98,518.60x = 4,722,692,955.74
  5. Step 5: Solve for x
    x = 4,722,692,955.74/98,518.60
  6. Step 6: Final answer
    x = 47,937.07

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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.