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Finding the Fourth Proportional to 170,300.16, 255,421.04 and 45,612

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Solution

The fourth proportional to 170,300.16, 255,421.04 and 45,612 is: 68,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,300.16 : 255,421.04 = 45,612 : x
  2. Step 2: Convert to fraction form
    170,300.16/255,421.04 = 45,612/x
  3. Step 3: Cross multiply
    170,300.16x = 255,421.04 × 45,612
  4. Step 4: Simplify right side
    170,300.16x = 11,650,264,476.48
  5. Step 5: Solve for x
    x = 11,650,264,476.48/170,300.16
  6. Step 6: Final answer
    x = 68,410.18

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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.