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Finding the Fourth Proportional to 98,361.54, 147,689.91 and 56,289.13

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Solution

The fourth proportional to 98,361.54, 147,689.91 and 56,289.13 is: 84,518.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,361.54 : 147,689.91 = 56,289.13 : x
  2. Step 2: Convert to fraction form
    98,361.54/147,689.91 = 56,289.13/x
  3. Step 3: Cross multiply
    98,361.54x = 147,689.91 × 56,289.13
  4. Step 4: Simplify right side
    98,361.54x = 8,313,336,174.45
  5. Step 5: Solve for x
    x = 8,313,336,174.45/98,361.54
  6. Step 6: Final answer
    x = 84,518.16

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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.