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Finding the Fourth Proportional to 145,894.80, 201,500.90 and 98,065.11

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Solution

The fourth proportional to 145,894.80, 201,500.90 and 98,065.11 is: 135,441.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,894.80 : 201,500.90 = 98,065.11 : x
  2. Step 2: Convert to fraction form
    145,894.80/201,500.90 = 98,065.11/x
  3. Step 3: Cross multiply
    145,894.80x = 201,500.90 × 98,065.11
  4. Step 4: Simplify right side
    145,894.80x = 19,760,207,923.60
  5. Step 5: Solve for x
    x = 19,760,207,923.60/145,894.80
  6. Step 6: Final answer
    x = 135,441.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.