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Finding the Fourth Proportional to 349,726.80, 524,719.80 and 113,077.20

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Solution

The fourth proportional to 349,726.80, 524,719.80 and 113,077.20 is: 169,657.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,726.80 : 524,719.80 = 113,077.20 : x
  2. Step 2: Convert to fraction form
    349,726.80/524,719.80 = 113,077.20/x
  3. Step 3: Cross multiply
    349,726.80x = 524,719.80 × 113,077.20
  4. Step 4: Simplify right side
    349,726.80x = 59,333,845,768.56
  5. Step 5: Solve for x
    x = 59,333,845,768.56/349,726.80
  6. Step 6: Final answer
    x = 169,657.70

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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.