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Finding the Fourth Proportional to 98,562.51, 147,920.31 and 39,404.16

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Solution

The fourth proportional to 98,562.51, 147,920.31 and 39,404.16 is: 59,136.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,562.51 : 147,920.31 = 39,404.16 : x
  2. Step 2: Convert to fraction form
    98,562.51/147,920.31 = 39,404.16/x
  3. Step 3: Cross multiply
    98,562.51x = 147,920.31 × 39,404.16
  4. Step 4: Simplify right side
    98,562.51x = 5,828,675,562.49
  5. Step 5: Solve for x
    x = 5,828,675,562.49/98,562.51
  6. Step 6: Final answer
    x = 59,136.84

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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.