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Finding the Fourth Proportional to 347,903.16, 521,859.66 and 98,585.16

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Solution

The fourth proportional to 347,903.16, 521,859.66 and 98,585.16 is: 147,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,903.16 : 521,859.66 = 98,585.16 : x
  2. Step 2: Convert to fraction form
    347,903.16/521,859.66 = 98,585.16/x
  3. Step 3: Cross multiply
    347,903.16x = 521,859.66 × 98,585.16
  4. Step 4: Simplify right side
    347,903.16x = 51,447,618,078.65
  5. Step 5: Solve for x
    x = 51,447,618,078.65/347,903.16
  6. Step 6: Final answer
    x = 147,879.13

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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.