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Finding the Fourth Proportional to 98,510.55, 147,698.30 and 35,329.31

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Solution

The fourth proportional to 98,510.55, 147,698.30 and 35,329.31 is: 52,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,510.55 : 147,698.30 = 35,329.31 : x
  2. Step 2: Convert to fraction form
    98,510.55/147,698.30 = 35,329.31/x
  3. Step 3: Cross multiply
    98,510.55x = 147,698.30 × 35,329.31
  4. Step 4: Simplify right side
    98,510.55x = 5,218,079,027.17
  5. Step 5: Solve for x
    x = 5,218,079,027.17/98,510.55
  6. Step 6: Final answer
    x = 52,969.75

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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.