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Finding the Fourth Proportional to 349,718.80, 524,707.80 and 113,069.20

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Solution

The fourth proportional to 349,718.80, 524,707.80 and 113,069.20 is: 169,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,718.80 : 524,707.80 = 113,069.20 : x
  2. Step 2: Convert to fraction form
    349,718.80/524,707.80 = 113,069.20/x
  3. Step 3: Cross multiply
    349,718.80x = 524,707.80 × 113,069.20
  4. Step 4: Simplify right side
    349,718.80x = 59,328,291,179.76
  5. Step 5: Solve for x
    x = 59,328,291,179.76/349,718.80
  6. Step 6: Final answer
    x = 169,645.70

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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.